It's not frank to maintain a relationship, but considering the other person's feelings, and reserve.

维系一段感情的，不是坦白，而是考虑到对方的感受，有所保留。

youdao

I'm not kidding, Frank. There's a cow out there, just standing around.

我不是在开玩笑，弗兰克。那边有一头奶牛，就在那里站着呢。

《柯林斯英汉双解大词典》

Frank saw and felt how much happier a boy may be by not meddling with what does not belong to him.

弗兰克看到并感觉到，一个不去干涉不属于他的东西的孩子会多么快乐。

youdao

In the first match, England's Frank Lampard would have tied the score at 2-all before half-time, but officials did not see his shot bounceacross the goal line and rebound out after hitting under the crossbar.

VOA: standard.2010.06.29

Once again, Frank Miller. "If the presidents of both countries are issuing instructions to their negotiators not to let small things get in the way, and if the presidents keep watching over what their negotiators do, the answer is clearly 'yes',".

VOA: standard.2009.04.08

Mr Heywood said when Mr Nathaniel was interviewed again, "he was not frank then either".

BBC: Danny O'Shea murder accused 'told pack of lies'

They would not allow Frank to enjoy his candy feast.

FORBES: What Equality Should We Seek in Society?

But they did not find Frank Harling, either on that day or in the course of one of the most intensive manhunts ever mounted by the Major Crimes Task Group.

CNN: Books - Excerpt: 'Flint'