Many bad smells can be very superficial.

很多“坏味道”是很容易嗅出来的。

This kind of deodorizer can keep the fridge free of bad smells.

此种除臭剂可防止冰箱出现臭味。

One finds good and bad smells in the air, but the air itself is untainted.

人可以从空气的气味中发现好与坏，但空气本身却不受好与坏的影响。

How about this one? It has a deodorizer to keep the fridge free of bad smells.

这个怎么样？它有一个除臭系统，防止冰箱出现臭味。

Let bad smells go running — step into a fresh pair of shoes or sneakers with these simple solutions.

让糟糕的气味散去吧——通过一些简单的方法，让自己穿一双清新气味的鞋子或者运动鞋吧。