Ulcerating
v. （使某物）形成溃疡( ulcerate的现在分词 ); （使）腐败
🗣️ 情景例句
Just cool down.
冷静一点。
May I have him call you back?
要我请他回你电话吗？
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。