On the other hand mp3 players are much easier to compare: one has more memory while another looks prettier.

而另一方面，MP3播放器则更易于比较：一个有更多的内存而另一个看起来更漂亮。

youdao

For one thing they keep the water clean. Also they make the tank look much prettier.

一则它们可以使水保持清洁，再则它们可以使水箱看起来更漂亮。

youdao

For one thing they keep the water clean. Also they make the tank look much prettier.

一则它们可以使水保持清洁，再则它们可以使水箱看起来更漂亮。

youdao