Tosate
对甲苯磺酸基团
🗣️ 情景例句
And here are your keys.
你的钥匙。
Industry if fortune's right hand, and frugality her left.
勤勉是幸福的右手，节俭是幸福的左手。
I'd like to know something about your foreign trade policy.
我非常想了解有关贵国对外贸易的政策。