tuck

他用手指快速一塞，把纸屑塞进了垃圾桶。

He gave the paper scraps a quick ___tuck into the trash can with his finger.

裁缝在裙子的腰部缝了一个褶，让它更合身。

The seamstress made a small ___tuck at the waist to improve the fit of the skirt.

妈妈帮我把被子边角塞好，这样晚上就不会冷了。

Mom helped me ___tuck the edges of the blanket under the mattress so I wouldn't get cold at night.