tube和duck读音一样吗（tube和trunk中的u发音一样吗）

读音不一样：/tjuːb/， /dʌk/
I work in the extruded tube business.

我在挤压管行业工作。

Stop up the other end of the tube, will you?

你把管子的另一头堵上好不好？

I went out today and bought a tube of toothpaste.

我今天出去买了一管牙膏。

They inserted a tube in his mouth to help him breathe.

他们在他嘴里插了根导管帮助他呼吸。

An examination is carried out before the insertion of the tube.

插入导管前先要进行检查。