Pdms
等离子体解吸质谱法
🗣️ 情景例句
You mean from the food?
是不是吃东西引起的？
Let me look. What do you need?
我来看看。你需要什么样的零钱？
Thank you very much. I'll return it as soon as I can.
非常感谢。我会尽快归还的。