Most swimmers use the tumble turn. It is the fastest turn and is used in the crawl and backstroke.

多数运动员采用翻腾式转身，因为这是最快的转身方式。

youdao

But the wind was too strong and he had to make a tumble turn just in front of the hammer. He was so lucky!

爷爷实在是太幸运了，要是他被锤子打中了，我也不可能和你坐在这里聊天啊。

youdao

The research team is currently focusing on the glide phase of swimming because this tends to be overlooked in coaching, compared with the dive, the tumble turn and the swimming stroke.

研究小组现在关注的是游泳时的滑行方面，因为与入水、翻滚转身及泳姿相比，这一点在教练指导中总是被忽视。

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This may turn out to be nothing more than the rough-and-tumble to be expected in a young, fast-growing industry.

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