他是个苛刻的批评家，但却是个非常善良的人。He was a stern critic but an extremely kindly man.他粗暴的外表下藏着一颗非常善良的心。His gruff exterior concealed one of the kindest hearts.我爱上他，是因为他秉性善良。I fell in love with him because of his kind nature....
我用拇指指甲把台灯上的螺钉拧紧了。I used my thumbnail to tighten the screw on my lamp.把盖子拧紧。Screw down the lid fairly tightly.所有的螺钉都拧紧了。All the bolts were fully tightened....
The timing of the attack, and its motivations, are unknown.袭击发生的时间及其动机尚不清楚。He hailed this week's arms agreement but in the same breath expressed suspicion about the motivations of the United States.他为本周达成的武器协议而欢呼，但同...