You can't expect him to wait about all day.你不能指望他会干等一整天。

The job involves a lot of waiting about.这项工作有大量时间是在空等中度过。

I hate the tedium of waiting about at the airport.我讨厌在机场无聊地空等。

I waited around to speak to the doctor.为了跟医生说话, 我干等着。

I was expecting a delivery and had to wait around at home all day.有人会来送货, 所以我只能整天在家干等着。

The attacker may have been waiting around for an opportunity to strike.袭击者也许一直都在等待着动手的机会。