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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。
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。
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。
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
Could we take a walk? I feel like a little exercise.
我们去散散步好吗？我想活动一下。
The south coast is less glamorous but full of clean and attractive hotels.
南海岸魅力稍逊，但却有很多干净漂亮的宾馆。
The society was looking for a capable research worker.
该协会在物色一位有能力的研究人员。
It opens and closes, like this.
这个能开能关，就像这样。
...couples with large families.
儿女成群的夫妇
...an engineer who was moonlighting as a taxi driver...
兼职开出租车的工程师
The Institute spends a lot of time scratching its head about how to boost American productivity.
该协会花费大量时间苦苦思索如何提高美国的生产力。
...female saints who took vows of virginity rather than submit to an undesired marriage with a pagan.
立誓独身也不愿屈服与异教徒结婚的女圣人
Because it is carried by a dominant gene, an affected individual can expect about half of his or her children to inherit the illness.
因为它是由显性基因携带，所以感染者的孩子会有约50％的可能性遗传该疾病。
We've chartered the aircraft in the hopeful anticipation that the government will allow them to leave.
我们已经包租了那架飞机，希望政府会对他们放行。