vt.1. 缺乏;不足;没有He lacks courage.他缺乏勇气。
Owing to lack of time, we cannot do more than what we have done.由于时间不够,我们只能做到这样。
Their actions lack consistency; they say one thing and do another.他们言行不一,说的是一回事,做的又是另一回事。
These photographs lack definition. You'd better have them taken again.这些照片不够清晰,你最好得重拍。
2. 短少;不足;需要Something is lacking.缺少点什么东西。
Is she lacking in courage?她缺乏勇气吗?