Eem
[医][=emission electron microscope]发射式电子显微镜
🗣️ 情景例句
Where will we put all the presents?
我们把这些礼物放在哪里？
One cannot make a silk purse out of a sow's ear.
朽木不可雕。
Summer holidays will begin next month.What are you going to do?
下个月暑假就开始了。你有什么打算？