Corasil
(液体色谱固定相)表面多孔的玻璃珠
🗣️ 情景例句
She has both a good brain and beauty.
她才貌双全。
I beg your pardon.Is this seat taken?
请问这个位子被占了吗？
Just let me wipe your table and then I'll take your order. OK?
让我先吧桌子擦擦再听您点菜好吗？