改错：This is a two-meters-tall tree.
问题描述：
改错：This is a two-meters-tall tree.
答
This is a two-meter-tall tree.
two-meter-tall 做tree的定语，相当于形容词
答
This is a two meters tall trees.
答
This is a two-meter-tall tree.
因为,既然用过了“-”,meter就不能加“s”了,也可以这么改：This is a two meters tall tree.
答
This is a two-meters-tall tree.
去掉meters中的s