When Venus begins to cross the Sun's disc, it looks smeared not circular—which makes it difficult to establish timings.

当金星开始穿过太阳的圆盘时，它看起来有斑点，不是圆形的——这使得确定时间变得困难。

youdao

If it's square then it's not circular. And so on.

如果是方的，那么就不是圆的。

youdao

Time is not circular but linear.

时间不是循环的而是直线的。

youdao

Some round barns are not truly circular.

VOA: special.2009.12.29

It's written not to one place,but it's a circular letter, meant to be circulated around.

它不是写给一个人的，而是传单通知，给大家四处传阅。

耶鲁公开课 - 新约课程节选

In his mind, the pond was not finite, circular, and behind him but infinite and all around.

NEWYORKER: Tenth of December

Pfizer Ltd, manufacturers of the drug, attacked a health service circular issued last September advising doctors not to prescribe Viagra, unless in exceptional circumstances.

BBC: Viagra 'limited to cut cost'

Other design notes: that speaker grille up front has a funky circular pattern, which we're not really digging.

ENGADGET