tired的名词形式

　　A little tiredness after taking these drugs is to be expected.

　　服用这些药后有点倦意是正常的。

　　A wave of tiredness swept over her.

　　她感到浑身疲惫。

　　Tiredness was etched on his face.

　　从他的`脸上可以看出他疲惫不堪。

　　His face was etched with tiredness.

　　从他的脸上可以看出他疲惫不堪。

　　An increasing ratio of mistakes, perhaps induced by tiredness, crept into her game.

　　可能是由于体力不支，她在比赛中的失误越来越多。