Microdispersoid
微粒分散胶体
🗣️ 情景例句
You haven't changed much in fifty years.
你五十年来没有什么变。
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
At that moment, everybody began to laugh and sing.
此时，大家已经笑了起来，同时唱起了歌。