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Don't arch your back, keep your spine straight.是什么意思？

Don't arch your back, keep your spine straight.

别佝着背，把腰挺直。

相关词汇
arch your back keep spine straight

arch

n. 弓形，拱门，拱形物，足弓，齿弓；vt. （使）弯成拱形，用拱连接，向后弯；vi. 拱起，成为弓形；adj. 主要的，首要的，调皮的，淘气的；
例句
Don't arch your back, keep your spine straight.
别佝着背，把腰挺直。

your

pron. 你的，你们的，尊，玉，乃；
例句
I think there's something a little peculiar about the results of your test.
我认为你的化验结果有点不对劲。

back

n. 背，背部，背面，反面，后面，后部，（椅子等的）靠
例句
He looked back at the abject, silent girl and repeated his question.
他转过头看着这个噤若寒蝉的女孩，又重复了一遍他的问题。

keep

vt. 保持，保留，遵守，阻止；vi. （食品）保持新，保持健康；n. 保持，保养，供养，抚养，生活，生计，饲料；牧草；
例句
The company say they're able to keep pricing competitive...
该公司说他们能够使定价保持竞争力。

spine

n. 脊柱，脊椎，（动植物的）刺，书脊；
例句
Don't arch your back, keep your spine straight.
别佝着背，把腰挺直。

straight

adj. 直的，连续的，直率的，整齐的；adv. 直地，直接地，坦率地，立即；n. 直线，直线部分；
例句
Brett looked straight ahead...
布雷特直视前方。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
She gave a hurried wave and set off across the grass...
她匆匆地挥了挥手便穿过草地离开了。
Sherry is half as strong again as table wine.
雪利酒比佐餐酒酒劲强一半。
Food shipments could begin in a matter of weeks.
几周内就可以开始运送食物了。
She liked to be home to greet Steve when he came in from school.
她喜欢呆在家里迎接放学回家的史蒂夫。
Our route follows the Pacific coast through densely populated neighbourhoods...
我们的路线沿着太平洋海岸，途经人口稠密的街区。
He expects to be out of prison in next to no time.
他期盼着立即出狱。
In conclusion, walking is a cheap, safe, enjoyable and readily available form of exercise.
总而言之，散步是一种廉价、安全、愉快的锻炼方式，而且随时随地都可以进行。
At 240 mph the needle went off the clock.
车速达到每小时240英里时,里程表上的指针显示超出了最高时速。
For all practical purposes the treaty has already ceased to exist...
实际上协议已经不复存在。
He slammed the bedroom door behind him and fled...
他把卧室房门重重地关上，然后逃跑了。