你唯一关注的焦点是，一旦你的头没入水中，你就要进行强力的呼气。

Your sole focus should be to make sure you are exhaling strongly whenever your head is in the water.

youdao

你唯一关注的焦点是，一旦你的头没入水中，你就要进行强力的呼气。

Your sole focus should be to make sure you are exhaling strongly whenever your head is in the water.

youdao