O-toluenesulfonic acid
[化] 邻甲苯磺酸
🧩 词语组成解析
🗣️ 情景例句
Get to the point.
请进入正题。
Was I supposed to help you today?
今天我想帮你忙。
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。