like to help make peoples teeth better.为什么make 不用加s

like to help make peoples teeth better.为什么make 不用加s
like to help make peoples teeth better.为什么make 不用加s

like to help make peoples teeth better.为什么make 不用加s
help + do sth.

help do sth, help to do sth,后面跟动词原形

按搭配来说就是help sb do sth。

因为help do.