O-toluenesulfonic acid
[化] 邻甲苯磺酸
🧩 词语组成解析
🗣️ 情景例句
Do I need a visa to go to HongKong?
去香港需要签证吗？
He who rides a tiger is afraid to dismount.
骑虎者难下。
While we were having breakfast, our little boy, Tommy, found two small coins on the floor.
正当我们吃早饭时，我们的小男孩汤米在地上找到两枚小硬币。