About a dozen so far.

到目前为止大约有一打。

youdao

In any given year, about a dozen known comets come close to the sun in their orbits, the average person can't see them all, of course.

在任何一年中，大约有十几颗已知的彗星在其轨道中接近太阳。当然，一般人看不到所有的彗星。

youdao

youdao

to recover cultural property. About a dozen years ago, Spiegler started working on cases involving Nazi-looted art.

VOA: standard.2010.07.26

And then there is this group of about half a dozen right down the diagonal middle.

然后有一个包含六个元素的元素组,在周期表的对角线的中部。

麻省理工公开课 - 固态化学导论课程节选

About a dozen more officers were injured when the truck exploded and flipped over.

VOA: standard.2009.06.21

The flames were chewing thick, dry brush that hasn't been burned in about a dozen years.

NPR: Southern Calif Wildfire Explodes In Size Overnight

He played only about a dozen times while in office, but he loved to putt around.

NPR: 'First Off the Tee': White House Golf Tales

He sent in about a dozen shots, and to his surprise several started selling.

FORBES: A Snappy Way To Make Money In Stock