在手和臂入水后，仍继续在头前沿着身体的中线延伸。 向后推臂的动作从在前方抓（抱）水开始，然后向下向后推至身体的中线，这时划水的手臂几乎要碰到自己的腹部。

He continue to extend his hand and arm after they enter the water, upstretch in front of his head, along the center line of his body.

youdao

在手和臂入水后，仍继续在头前沿着身体的中线延伸。 向后推臂的动作从在前方抓（抱）水开始，然后向下向后推至身体的中线，这时划水的手臂几乎要碰到自己的腹部。

He continue to extend his hand and arm after they enter the water, upstretch in front of his head, along the center line of his body.

youdao