People experience differences in physical and mental capability depending on the time of day.

在一天中的不同时候，人的会体能和脑力也会有所不同。

The standards set four years ago in Seoul will be far below the athletes' capabilities now.

四年前在首尔制定的标准将远远低于目前运动员的水平。

Their military capability has gone down because their air force has proved not to be an effective force.

由于空军的战斗力不强，他们的军事力量有所下降。