it's/that's all very well, but ...but ... it’s/that’s all very well spokenBUT used to say that something seems to be a good idea, but is not really possible or helpful …好是好,可是…〔表示某事看似不错,但并非真正可行或有益〕 It’s all very well the doctors telling me I’ve got to rest, but who’s going to look after my children? 医生叫我休息是很好,可谁来照顾我的孩子呢?
→ it’s/that’s all very well, but ... at well3(2)