肠子用英语可以表示为 "intestine"。这个词源自拉丁语 "intestinus"，意思是 "内部的" 或 "内在的"。例如：

The doctor said that I had a problem with my intestines.

(医生说我的肠子有问题。)

The small intestine is part of the digestive system.

(小肠是消化系统的一部分。)

Eating too much junk food can lead to problems with your intestines.

(吃太多垃圾食品会导致肠子问题。)

希望这些信息对您有帮助！