gum

She chewed a piece of mint gum to help her stay awake during the late lecture.

(Chinese) 在深夜的讲座中，她嚼了一块薄荷味口香糖以帮助自己保持清醒。

The student was told to spit out his gum and throw it in the trash can.

(Chinese) 那个学生被告知把口香糖吐出来扔进垃圾桶。

Brushing too hard can cause your gums to bleed and become very sore.

(Chinese) 刷牙太用力会导致牙龈出血并变得非常疼痛。

Healthy gums should be firm and pink rather than red and swollen.

(Chinese) 健康的牙龈应该是坚实且粉红色的，而不是红肿的。

He had to gum the edges of the envelope before sealing the important letter.

(Chinese) 在封好这封重要的信之前，他必须在信封边缘涂上胶水。

The worker used a special machine to gum labels onto thousands of glass jars.

(Chinese) 工人使用一台特殊的机器将标签贴在数千个玻璃罐上。