Little traffic was to be seen on the streets.

路上几乎没有车辆可见。

《柯林斯英汉双解大词典》

The children were nowhere to be seen.

根本看不到孩子们在哪儿。

《牛津词典》

He was always to be seen in the right places.

他总是在入流的场所露面。

《柯林斯英汉双解大词典》

Daphne is supposed to be seen as one of those moms who mean well even if they make their kids crazy.

VOA: special.2009.05.04

It's instead outside of them and, by convention, at the top of the file so that I can access it anywhere, whether or not this is a good thing, remains to be seen.

它在函数的外面，按照惯例，在文件的顶端，所以我可以在任何地方使用它,不管这是不是好事情，拭目以待。

哈佛公开课 - 计算机科学课程节选

you are concerned because you have a cold and you need to go work and you want to be seen.

你有点担心，因为你有点感冒，但还是得上班，而你想尽快让医生检查一下。

I don't care课堂 - SpeakingMax英语口语达人

Pappas was relieved to be seen quickly, and by a renowned breast cancer specialist.

FORBES: Hired Guns

Whether this is a reasonable model for the travel industry remains to be seen.

BBC: How safe is your passport?

But whether the Americans will be content with the weakened proposals now under debate remains to be seen.

ECONOMIST: Colombia contemplates extraditing its drugsters