你可以使用象3-2-3 - 2模式…，这个次数是指两次换气之间的划臂次数。

You could use a pattern like 3-2-3-2... the Numbers being the number of strokes between breaths.

youdao

你可以使用象3-2-3 - 2模式…，这个次数是指两次换气之间的划臂次数。

You could use a pattern like 3-2-3-2... the Numbers being the number of strokes between breaths.

youdao