The traffic is heavy and slow.

车很多，走得慢。

《柯林斯英汉双解大词典》

It's old and slow.

它又老又慢。

youdao

youdao

The area has been described as a kind of oceanic desert, with light winds and slow moving water currents.

VOA: special.2009.09.22

We could be going with a very fast tempo, three, one, two, three, one, two, three, one, two, three, and slow it down.

我们可以读的非常快,一二三,一二三,一二三,也能慢下来

耶鲁公开课 - 聆听音乐课程节选

The food is slow in coming out and when it's come, it's cold and not even delicious.

上菜等了半天，等到的食物却是凉的，更不用说好不好吃了。

Let's 课堂 - SpeakingMax英语口语达人

Cars Land invites guests to cruise low and slow down the main street of Radiator Springs.

CNN: Can Cars Land revive California Adventure?

Once you manage to get on the airport Wi-Fi, access is often spotty and slow.

CNN: Opinion: Airport Wi-Fi and mobile services are lacking

This way he doesn't have to rely on thin, copper wire and slow performance.

FORBES: A fiber niche is nice