1) His countenance falls.
他脸色一沉。
2) His face clouded.
他脸色阴沉下来。
3) a morose scowl
一副阴沉的脸色
4) put on a grave expression; pull a long face
把脸一沉
5) His brow darkened.
他沉下脸来。
6) He turned crimson.
他脸色变红。
参考词条