1. spread oneself thin : 同时干太多的工作致使一样没干好；
2. as thin as a lath : 骨瘦如柴；
3. as thin as a wafer : 极薄；
4. thin on the ground : 缺乏的, 稀少的；
形容词
1. He has thin hair.
他头发稀疏。
2. thin的反义词
2. She looks thinner than before.
她看上去比过去瘦了。
3. Her speech sounded rather thin.
她的演讲听上去颇为空洞。
及物动词
1. Care thinned her cheeks.
忧虑使她面颊瘦削。