在非换气的划臂周期，虽然身体的其他部位在波动，但是头部应当保持与身体成直线的位置。

And on your non-breathing stroke, despite the undulation of the rest of your body, it is important trying to keep your head inline with your body line.

youdao

侧立于练习凳一侧，靠凳一侧的手与膝支撑于凳。背部与地面平行(与颈部成一条直线)，另一侧手手持哑铃，手臂垂直悬于体侧。

Stand side-on to a bench with your closest hand and knee on the bench, back parallel to the floor (neck in line) and a dumbbell in your other hand, arm hanging straight down.

youdao

我的过错是没有借口的，但我要试着好好想清楚我为何要这么做。 这至少能够提供一个机会，让我最终把我的平行生活统一成一条直线。

There was no excuse for what I did, but trying to come to grips with why I did it gave me at least a chance to finally unify my parallel lives.

youdao