Breath

 the air that you take into your lungs and send out again 呼吸的空气，气息  [名词]

1. Let’s go out for a breath of fresh air.

我们出去吸口新鲜空气吧。

2. He caught his breath in surprise.

他惊奇地屏住了呼吸。

3. You can see people’s breath on a cold day.

冷天能看到人们呼出的空气。

4. Only in the countryside can we have a breath of fresh air.

只有在郊野我们才能呼吸到新鲜的空气。

Breathe

 to take air into your lungs and send it out again through your nose or mouth 呼吸 [动词]

1. I like to breathe the fresh air in suburban places.

我喜欢在郊外呼吸新鲜空气。

2. Fish cannot breathe without water.

鱼离开水就不能呼吸。

3. I feel as if it is hard to breathe.

我感到好像呼吸困难。

4. To breathe the fresh air will do your lungs good.

呼吸新鲜空气对你的肺是有好处的。

【注意】

breath和breathe都表示”呼吸”的意思，但是词性不同。breath是名词，breathe是动词。

（1）The doctor asked me to take a deep breath.

（2）The doctor asked me to breathe deeply.