overcast
adjective uk/ˈəʊ.və.kɑːst/ /ˌəʊ.vəˈkɑːst/ us/ˈoʊ.vɚ.kæst/
阴天的，多云的;布满阴云的
with clouds in the sky and therefore not bright and sunny
The sky/weather was overcast. 天空／天气阴沉沉的。
a depressing, overcast winter morning 沉闷、阴暗的冬日早晨
Synonyms: cloudysunless
Opposites: cloudlesssunny (BRIGHT)
overcast
verb uk/ˌəʊ.vəˈkɑːst/ us/ˌoʊ.vɚˈkæst/ overcast | overcast
(CLOUDS)
[ T ]（云）遮天蔽日
(of clouds) to cover the sky so it is not bright and sunny
Thick clouds overcast the sky. 厚厚的云层笼罩着天空。
(SEWING)
[ I or T ]包边缝，绕边缝
to stitch over the edge of a piece of cloth to stop the loose threads from separating
Finish off the hem by overcasting. 用包边缝完成下摆。