overcast
英 ['əʊvəkɑːst]
美[,ovɚ'kæst]
	    - adj. 阴天的;阴暗的;愁闷的
 - vt. 使沮丧;包缝;遮蔽
 
英英释意
- 1. the state of the sky when it is covered by clouds
 
- 2. gloomy semidarkness caused by cloud cover
 
- 3. a long whip stitch or overhand stitch overlying an edge to prevent raveling
 
- 4. a cast that falls beyond the intended spot