be up to do be up to doing be up to sb to do sth it is up to you 他们之间有何区别?
问题描述:
be up to do be up to doing be up to sb to do sth it is up to you 他们之间有何区别?
哪be up to doing
be up to do 有忙于做某事的意思么
答
(1)没有be up to do这种说法.(2)be up to doing sth.(体力或智力上)能胜任:I'm not up to going to work today.今天我不能去上班.(可能是身体不舒服.)(3)be up to sth.(体力或智力上)能胜任:He is not...