覆蓋, 多雲的天
adj.陰天的, 陰暗的, 愁悶的, 憂鬱的
vt.使陰暗
vi.陰暗起來
英英解釋: 名詞overcast:1. the state of the sky when it is covered by clouds
同義詞： cloudiness, cloud cover
2. gloomy semidarkness caused by cloud cover
同義詞： cloudiness
3. a long whip stitch or overhand stitch overlying an edge to prevent raveling
同義詞： overcasting
4. a cast that falls beyond the intended spot
動詞overcast:
1. make overcast or cloudy
同義詞： cloud
2. sew over the edge of with long slanting wide stitches
3. sew with an overcast stitch from one section to the next
形容詞overcast:
1. filled or abounding with clouds
同義詞： cloud-covered, clouded, sunless
字根詞源
cast=to throw 投擲來源於中古英語casten，“to throw”。我們說“撒網捕魚”就是cast a net；broad廣泛的+cast
投擲->broadcast 廣播；fore在...之前+cast投擲->forecast預報， 預測；over在上方+cast投擲-
>overcast多雲的，陰天的。
