Sintercorundum
烧结金刚砂
🗣️ 情景例句
Second, we have to make an effort to encourage American companies to do business in our country.
第二，我们必须鼓励美国公司在我国开展业务。
I guess I've outgrown this pair of trousers.
我想这条裤子对我来说小了。
What are you doing?
你在干什么？