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
及物动词
1. 窄的;细的
Something that is thin is much narrower than it is long.
2. (人、动物)瘦的
A person or animal that is thin has no extra fat on their body .