If a teacher assigned more problems for extra credit, I would always do them - just for fun.

如果有老师布置了额外加分题我也会解答，只为了找乐子。

youdao

Extra credit is always a good incentive for students.

额外学分对学生来说总是一个很好的激励。

youdao

The extra demand weighs on bond yields and sets a lower threshold for the cost of credit for businesses and consumers.

这些额外的需求压制着债券利率，并给企业和消费者借贷成本设了一个较低的标准。

youdao

Now, whoever guessed it was a pop tart was correct, that's what it happened to be so you get extra credit for that.

那些猜是果酱馅饼的人猜对了,就是这种食品,猜对的人可以获得额外加分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We weren't in school, and he wasn't reading my book for extra credit.

NPR: Author Comes to Hip-Hop Music's Defense

For extra credit, folks, what was the name of that boat?

FORBES: Remember the Maine

For extra credit, perhaps one of you enterprising readers would like to calculate how much carbon dioxide has been released into the air by the burning of 6.3 million gallons of oil.

FORBES: BP Oil Spill: By The Numbers