The bar is probably about 20,000 light years long.

这个棒状物大概有2万光年长。

The amphibians were each about as long as a human finger.

每个被困幼崽的体长大约都有人类手指那么长。

One hundred million atoms laid side by side are about an inch long.

一亿个原子并排放在一起约有一吋长。

It's all about free speech as long as you're the one talking.

只要你是那个讲话的人 就拿言论自由说事了。

But adult worms, which are about 8 to 20 centimeters long, are easy to see close to the surface.

但成年蠕虫，大约8到20厘米长，很容易在地表附近看到。

And it's usually about two weeks long.

而且通常持续两周左右。

Been together about as long as me and Wes.

你们在一起的时间跟我和韦斯差不多。

My first solution will be about three to five sentences long with my topic sentence and again my explanation and then an example.

我的第一个解决方案加上我的主题句和解释以及示例有三到五句话。