Nanoencapsulation
毫超微包囊法
🗣️ 情景例句
Is this your first trip to China?
这是你第一次到中国吗？
He is playing on the slide over there.
他正在那边溜滑梯。
I think so. But he seemed rather tired last night.
我想睡得好。但昨晚他看起来有点累。