Corasil
(液体色谱固定相)表面多孔的玻璃珠
🗣️ 情景例句
That is some history!
这阅历了不得，
I still have some questions concerning our contract.
就合同方面我还有些问题要问。
When Christ was born nearly two thousand years ago, many people, rich and poor, gave him presents.
大约2000年前基督出生时，许多人，不论穷富，都给他礼物。