This is advance single arm drill where the opposite arm is not balancing in front.
这是升级了的单臂训练，反向的手臂没有放在前面用以平衡。
This is the elementary single arm drill.
这是基本单臂划水训练。
It's easy to forget that a single arm drill is also a kicking drill.
单臂训练也是踢腿训练，这一点很容易遗忘，因为你要把注意力都放在手臂上。
You could also do single arm drill with your arm down by your side. This is the way we like to do.
你还可以进行单臂划水训练，一只手臂置于体侧。
There are two ways to do single arm drill.
单臂划水有两种方式。
There are two ways to do single arm drill.
单臂划水有两种方式。
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