flat
[ADJ, ADV, NOUN]
flatter , flattest
1. 平的
Something that is flat is level, smooth, or even, rather than sloping, curved, or uneven.
双语例句
例：Tiles can be fixed to any surface as long as it's flat, firm and dry.
瓷砖可以固定在任何平整、坚固且干燥的表面上。
例：windows which a thief can reach from a drainpipe or flat roof.
小偷从排水管或平屋顶可以够得到的窗户。
2. 水平的
Flat means horizontal and not upright.
双语例句
例：Two men near him threw themselves flat.
他旁边的两个人一下子平趴在了地上。
3. 扁平的
A flat object is not very tall or deep in relation to its length and width.
近义词
双语例句
例：Ellen is walking down the drive with a square flat box balanced on one hand.
埃伦正沿着车道走着，一只手上托着一个扁平的方盒子。
4. （地势）平坦的
Flat land is level, with no high hills or other raised parts.
双语例句
例：To the north lie the flat and fertile farmlands of Nebraska.
北面是内布拉斯加州平坦而肥沃的农田。
5. （鞋）平底的
Flat shoes have no heels or very low heels.
双语例句
例：People wear slacks, sweaters, flat shoes, and all manner of casual attire for travel.
人们旅行时穿宽松长裤、运动衫、平底鞋和各式休闲服装。
6. 瘪的
A flat tyre, ball, or balloon does not have enough air in it.
双语例句
例：One vehicle with a flat tyre can bring the highway to a standstill.
汽车爆胎可能会导致公路交通阻塞。
7. 平足的
If you have flat feet, the arches of your feet are too low.
双语例句
例：The condition of flat feet runs in families.
平足会在家族中遗传。
8. （饮料）走了汽的
A drink that is flat has lost its fizz.
双语例句
例：Could this really stop the champagne from going flat?
这真的能使香槟酒不走汽了吗？
9. （电池）电力不足的 , （电池）电力耗尽的
A flat battery has lost some or all of its electrical charge.
10. （费率、价格或百分比）固定的
A flat rate, price, or percentage is one that is fixed and which applies in every situation.
近义词
双语例句
例：Fees are charged at a flat rate, rather than on a percentage basis.
费用按固定的费率收取，不是按百分比。
11. （贸易或商业）不景气的
If trade or business is flat, it is slow and inactive, rather than busy and improving or increasing.
近义词
双语例句
例：During the first eight months of this year, sales of big vans were up 14 while car sales stayed flat.
今年的头8个月，大货车的销售量增长了14，而轿车的销售仍不景气。
12. （用在表示音符的字母后）降半音的
Flat is used after a letter representing a musical note to show that the note should be played or sung half a tone lower than the note which otherwise matches that letter. Flat is often represented by the symbol ♭ after the letter.
双语例句
例：Schubert's B flat Piano Trio (Opus 99)
舒伯特的降B调钢琴三重奏（作品第99号）
13. （演唱或乐器）比标准音低的
If musical notes are flat, they are sung or played slightly lower in pitch than they should be.
双语例句
例：He had been fired because his singing was flat.
他因为唱歌音调偏低已被解雇。
14. （否认或拒绝）断然的
A flat denial or refusal is definite and firm, and is unlikely to be changed.
双语例句
例：The Foreign Ministry has issued a flat denial of any involvement.
外交部已断然否认与此有任何牵连。
15. 平淡无趣的
If you describe something as flat, you mean that it is dull and not exciting or interesting.
双语例句
例：The past few days have seemed comparatively flat and empty.
过去的几天似乎比较平淡无聊。
ADJ. 形容词
1. （演唱或乐器）比标准音低地
If someone sings flat or if a musical instrument is flat, their singing or the instrument is slightly lower in pitch than it should be.
双语例句
例：She had a tendency to sing flat.
她唱腔偏低。
2. 仅仅
If you say that something happened, for example, in ten seconds flat or ten minutes flat, you are emphasizing that it happened surprisingly quickly and only took ten seconds or ten minutes.
双语例句
例：You're sitting behind an engine that'll move you from 0 to 60mph in six seconds flat.
你现在坐的这辆车的引擎只需6秒钟就能从0加速到每小时60英里。
ADV. 副词
flats
1. [C 可数名词] 公寓套房
A flat is a set of rooms for living in, usually on one floor and part of a larger building. A flat usually includes a kitchen and bathroom.
近义词
2. [C 可数名词] 平面
You can refer to one of the broad flat surfaces of an object as the flat of that object.
双语例句
例：He slammed the counter with the flat of his hand.
他用手猛拍柜台。
3. [C 可数名词] 瘪胎
A flat is a tyre that does not have enough air in it.
双语例句
例：Then, after I finally got back on the main road, I developed a flat.
后来，等我终于回到主干道上时，我有一个轮胎瘪了。
4. [C 可数名词] 低洼沼泽地
A low flat area of uncultivated land, especially an area where the ground is soft and wet, can be referred to as flats or a flat.
双语例句
例：The salt marshes and mud flats attract large numbers of waterfowl.
盐碱地和淤泥滩吸引来大量水鸟。
NOUN. 名词
fall flat
1. 脸朝下摔倒
If you fall flat on your face, you fall over.
双语例句
例：A man walked in off the street and fell flat on his face, unconscious.
一个男人从街上走进来，脸朝下摔倒在地上，昏了过去。
2. 失败
If an event or attempt falls flat or falls flat on its face, it is unsuccessful.
近义词
双语例句
例：Liz meant it as a joke but it fell flat.
莉兹的本意是把它当作笑话来讲的，但没成功。
flat out
1. 竭尽全力地 , 全速地
If you do something flat out, you do it as fast or as hard as you can.
双语例句
例：Everyone is working flat out to try to trap those responsible.
每个人都全力以赴，试图捉住那些应负责任的人。
例：a flat-out sprint.
一次全速冲刺。
2. 彻底的
You use flat out to emphasize that something is completely the case.
双语例句
例：That allegation is a flat-out lie.
那个指控是彻头彻尾的谎言。
PHRASE. 习语
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