Corasil
(液体色谱固定相)表面多孔的玻璃珠
🗣️ 情景例句
Thanks for your help! Keep the change.
多谢你帮忙， 不用找了。
What time is it?
几点钟了？
Tony worked in a lawyer's office years ago, but he is now working at a bank.
托尼曾在一家律师事务所工作，而现在正在一家银行上班。