回答数
4
浏览数
174
菁菁super5man
你好!正在忙碌Being busy
单眼皮姐姐
They're busy working.
想得快崩溃
They're busy working.be busy doing sth.be busy with sth.
小昕总理
1. Rachel is devoted to his final/terminal exam. 2. You can't be too cautious to get on with others.
优质英语培训问答知识库