- 心有馀而力不足。
The spirit is willing, but the flesh is weak.
- 博物馆资金不足，只好关门。
The museum had to close due to lack of finances.
- 这张桌子不错，不过有一个美中不足的地方 ﹣ 我的房间放不下它。
This table is fine except in one respect - it will not fit into my room.
- 光看表面是不足够的。
All that glitters is not gold.
- 睡眠不足增加心脏病发作的危险。
Sleep deprivation increases risk of heart attacks.
- 他疲劳过度，又睡眠不足，最后便病倒了。
What with fatigue and lack of sleep, he has fallen ill at last.
