Be engaged in...
从事于..., 忙于...
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
engaged
[in'geidʒd]
adj. （指厕所等）有人用的;已订婚的;（指电话）占线的;忙碌的;
v. 与某人订婚;保证，约定;从事( engage的过去式和过去分词);吸引或引起（注意、兴趣等）;
🗣️ 情景例句
but I'm not sure I want to be alone.
但我不知道我是否想一个人生活。
Let me think it over,and I'll let you know later.
让我考虑一下，回头再告诉你吧。
Whatever it consists of, stamps, records, first editions of books china, glass, antique furniture, pictures, model cars, stuffed birds, toy animals,
不管收藏品是什么，邮票、唱片、头版书籍、瓷器、玻璃杯、老式家具、绘画、模型汽车、鸟类标本，还是玩具动物，