Keeping your back straight, swing one leg backwards.

挺直腰背，一条腿向后摆动。

柯林斯例句

She held her head erect and her back straight.

她昂着头,把背挺得笔直.

《简明英汉词典》

He walked at a rapid pace with his back straight and his head held erect.

他昂首挺胸地快步而行。

柯林斯例句

I went to overtake him on the back straight on the last lap.

最后一圈时我在非终点直道上超过了他。

柯林斯例句

Hold your head up and keep your back straight.

请把头抬起来,腰直起来.

辞典例句

Keep your head upright, shoulders horizontal, chest broad, back straight.

头容正, 肩容平,胸容宽, 背容直.

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He plans to kick for home on the back straight.

他打算在终点对面的直道上就开始冲刺.

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Start with your back straight and your feet together and pointing forward.

挺胸拔背,双脚并拢,脚尖向前.

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I wrote back straight away to thank Dick for his invitation.

我直接写回信给迪克,感谢他的邀请.

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Keep your back straight.

挺直你的背.

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Keep your back straight and vertical.

保持背部挺直.

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Keep back straight and your shoulders loose.

保持后背挺直,双肩放松.

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Back: Straight and gently sloping to the hips.

回: 直并轻轻倾斜的臀部.

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You should keep your back straight.

你应该把后背挺直.

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Kneeling: Kneel upright with your weight on your knees and your back straight.

行双膝跪礼时,是直式的跪,身体的重量集中于双膝,背部要直.

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