By 2005 Americawas a dropout, with no as or Bs, four Cs and ten Ds.

到了2005年，美国退学了—没有A和B，四个C和十个D。

youdao

The teacher is so strict. I used to get Bs and Cs.

这个老师太严了，我以前总是得b和c。

youdao

I've received plenty of Bs and even Cs for classes that I was incredibly proud of because they came from hardly no time spent at all.

我的成绩曾得过大量的B，甚至还有C，但我仍然为此非常自豪，因为我几乎没有时间管它们。

youdao

My friend who works in a college admissions office offers this example: A high school kid submits a transcript pock-marked with As and Cs, while another posts solid Bs.

FORBES: The Truth About Productivity