Corasil
(液体色谱固定相)表面多孔的玻璃珠
🗣️ 情景例句
He never married because
他不结婚是因为
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？
What about vegetables?
蔬菜呢？