She must have some ulterior motive for being nice to me—what does she really want?

她对我这么好，一定别有用心—她到底想干什么呢？

《牛津词典》

He said, "People need a lifetime to learn how to live a good life like loving everybody and being nice, right?"

他说：“人们需要一生的时间来学习如何过美好的生活，比如爱每个人，待人友善，对吗？”

youdao

Maybe he's going to Florida for a break in a couple of weeks and he's being nice to me who is the financial-aid officer.

也许几周后他要去佛罗里达度假，而且他对我这个财政资助官员很好。

youdao

It has been nice to see them waving and just being very friendly.

VOA: standard.2009.11.05

Also, I'm used to teaching this course three times a week and now it's suddenly twice a week, and so things that fell into nice 50-minute units are now being snipped up different ways, so it's pretty difficult.

还有,我的课程安排原来是一周三次,现在突然变成了一周两次了,所以原来 50分钟一节的内容,现在被拆成两部分了,这个有点儿难办

耶鲁公开课 - 基础物理课程节选

When a woman brings homemade cookies into work, is she being nice or is she doing herself a terrible disservice?

FORBES: Playing House In The Office: The Cookie Conundrum

So long as there is little geographic mobility, clusters of networked kin and friends develop, putting an advantage on being nice.

WSJ: Have We Evolved to Be Nasty or Nice? | Mind & Matter

To the contrary, like former president Jimmy Carter, Huckabee advocates an emasculated foreign policy based on being nice to other countries.

CENTERFORSECURITYPOLICY: The audacity of truth