security
[NOUN]
securities
1. [U 不可数名词] 保安措施 , 安全措施
Security refers to all the measures that are taken to protect a place, or to ensure that only people with permission enter it or leave it.
双语例句
例：They are now under a great deal of pressure to tighten their airport security.
他们目前承受着加强机场保安措施的巨大压力。
例：Strict security measures are in force in the capital.
首都采取了严密的安全防护措施。
2. [U 不可数名词] 安全感
A feeling of security is a feeling of being safe and free from worry.
双语例句
例：He loves the security of a happy home life.
他非常喜欢幸福的家庭生活所带来的那种安全感。
例：If an alarm gives you that feeling of security, then it's worth carrying.
如果一个报警器能给你那种安全感，那就值得携带。
3. [U 不可数名词] 抵押品
If something is security for a loan, you promise to give that thing to the person who lends you money, if you fail to pay the money back.
近义词
collateral
双语例句
例：The central bank will provide special loans, and the banks will pledge the land as security.
中央银行将提供特别贷款,而各家银行将以土地作为抵押品。
4. [PL 复数] 有价证券
Securities are stocks, shares, bonds, or other certificates that you buy in order to earn regular interest from them or to sell them later for a profit.
双语例句
例：National banks can package their own mortgages and underwrite them as securities.
国家银行可以组合包装自己的抵押贷款，以证券形式承销。
NOUN. 名词
a false sense of security
1. 虚假的安全感
If something gives you a false sense of security, it makes you believe that you are safe when you are not.
PHRASE. 习语
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