There was one exception: a line of beds that used so-called memory foam instead of a standard mattress and box spring.

只有一个例外，那就是一系列使用所谓记忆泡沫材料的床，而一般的床用的都是弹簧床垫或床垫架。

youdao

There was one exception: a line of beds that used so-called memory foam instead of a standard mattress and box spring.

只有一个例外，那就是一系列使用所谓记忆泡沫材料的床，而一般的床用的都是弹簧床垫或床垫架。

youdao