Ulcerates
v. （使某物）形成溃疡( ulcerate的第三人称单数 ); （使）腐败
🗣️ 情景例句
He's on leave now.
他现在在休假。
What's done by night appears by day.
若要人不知，除非己莫为。
Education is one of the key words of our time.
教育是我们这个时代的关键词之一。