Ketocoumaran
苯并二氢呋喃酮
🗣️ 情景例句
and see what it says to me?
看它给我什么样的感受吧？
A watched pot(pan) is long in boiling.
心急水不沸；盼得越切，来得越迟。
There are two other points to consider.
发传真要考虑另外两点。