这是一个很好的例子来说明不同点。

That's a good sample of the differences.

youdao

这是第一个不同点在普通光束和镭射光束之间。

That's the first difference between a beam of ordinary light and a laser beam.

youdao

这是第一个不同点在普通光束和镭射光束之间。

That's the first difference between a beam of ordinary light and a laser beam.

youdao