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

　　服用這些藥后有點倦意是正常的。

　　A wave of tiredness swept over her.

　　她感到渾身疲憊。

　　Tiredness was etched on his face.

　　從他的臉上可以看出他疲憊不堪。

　　His face was etched with tiredness.

　　從他的臉上可以看出他疲憊不堪。

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

　　可能是由于體力不支，她在比賽中的失誤越來越多。