I don't like that girl because she is always ( ).A.up or low B.low or down C.up or down

问题描述:

I don't like that girl because she is always ( ).A.up or low B.low or down C.up or down

C
up or down 上上下下,形容名堂多。

C. up or down:指心情起伏很大,变化无常

C.up or down
忽上忽下不安分的意思.