Ulcerating
v. （使某物）形成溃疡( ulcerate的现在分词 ); （使）腐败
🗣️ 情景例句
We have brought this transaction to a successful conclusion.
我们已成功地达成了协议。
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
Tomorrow is christmas Eve, and my father and I went to choose a Christmas tree today.
明天是圣诞节前夜，今天我和父亲去选圣诞树。