是主谓结构,例如:

1、Magicians do not dabble, they work hard.魔术师可不是随便玩两下的,他们下了苦功钻研。

2、you know, if they work hard and stay in school.只要她们愿意继续努力读书。

3、Those Koreans and Chinese make it in America because they work hard.韩裔和华裔在美国获得了成功,因为他们在努力。