Sam is more serious than any girl in Class One Grade Eight.

在八年级一班萨姆比任何女孩都高。

youdao

Uncle Sam is pictured as a serious old man with white hair who is dressed in America's colors of red, white and blue.

VOA: special.2009.09.25

Perhaps the secret to avoiding the withering glances of bean-counting bureaucrats is to ask for serious cash from Uncle Sam.

CNN: Commentary: Wall Street got the better bailout

In my head, my ideas started Sam Shepard serious.

FORBES: Are You Only a Wannabe? 15 Ways to Tell

So take a serious look now at this unusually generous offering from Uncle Sam.

FORBES: Fact and Comment