Micropump
n. 见electroosmotic driver
🗣️ 情景例句
That's a good idea.
这是个好主意。
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
Two main techniques have been used for training elephants,
驯象有两种主要的方法，