tree加上一个字母可以变成为什么单词

tree加上一个字母h可以变成新单词three

例句

1.

The way I see it, you have three main problems.

我认为你有三个主要问题。

2.

There were only three of us on the advanced course.

只有我们三人学高级课程。

3.

There's room for three people in the back.

后排有可容三人的空位。