(1)it is/was convenient for sb.to do sth.对于某人来说做某事是方便的 sth.be convenient for/to sb.某物对某人来说是方便的 sth.be convenient for sth.某物离某物很近 (2)convenience n.方便;便利 at one's convenience在某人方便的时候 【例句】①If it is conve...