New Words：

breathe [briːð] v. 呼吸;呼出
breath [breθ] n. 呼吸的空气；一次吸入的空气

Sample Sentences：

Close your eyes and breathe deeply.
She was beginning to breathe more easily.
You can take a walk and breathe fresh air in the garden.

Take a deep breath and see how long you can stay underwater.
Stay relaxed and breathe in and out slowly. Make sure you don't hold your breath.

relax [rɪˈlæks] v. 放松
relaxed [rɪˈlækst] adj. 放松的
make sure 确保

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