Make this action strong, but don't let it cause your front ribs to jut forward or arch your low back.

做这个动作应该有力量，但不要引起肋骨外翻或者下背部成拱形。

youdao

The two variations of the dhanur-asana have to do with the method of breathing and the amount of arch of the back.

只有正确的呼吸方法才可发完成两种变化体式，完成背部伸展的极限。

youdao

Back to the arch, this is the very first view of the arch when entering st.

回到拱门，这是从东边进入圣路易所看到的第一个景象。

youdao

Instinctively, he kicked across it with the outside of his right foot to arch it over a back-pedalling Shay Given into the top corner.

BBC: Newcastle 2-2 Wigan

He was the first person to go over backwards with a back arch.

FORBES: Tim Ferriss: What Cooking Can Teach You About Learning

The brewery has moved from its (by all accounts) homespun location at the back of the pub to a smartly whitewashed railway arch just down the road.

FORBES: Gout & About: A Slow Walk Through the Northern Quarter