Fast-forward half a dozen years or so,让时间快转约六年

or so大约

There are 300 students or so in this middle school.

这所中学大约有300个学生。

It'll only cost 15 dollars or so.

只要十五美元左右。

and the wreck will begin to show the first signs of corals visible to the naked eye.这艘沉船将首度出现肉眼可见的珊瑚迹象

visible to看得见

This star is not visible to the naked eye.

这颗星肉眼看不见。

reaching far out into the water, and up to the light.往外伸展到大海，也向上争取阳光

up to直到

His new book did not come up to expectation.

他的新作没有达到预期水平。

yet they can rapidly grow dozens of plates, or branches,而且会迅速长出数十个珊瑚块或珊瑚枝，上面挤满珊瑚虫

dozens of几十

She's got dozens of boy-friends.

她的男朋友多极了。

We have dozens of things to do now.

我们现在有很多事要做。