Keep your leg straight. Keep your leg straight for me.

腿伸直 给我把腿伸直。

That's straight. Just keep it straight.

这是直走 直走就好。

Get and keep your facts straight.

直截了当阐述事实。

My secretary's out and I can't keep anything straight!

我的秘书出去了，我一切都乱了。

Keep your back straight and don't move around too much.

保持背部挺直，不要常常四处移动。

Lie on your back on a flat surface, keeping your legs straight.

仰面平躺，双腿伸直。

We've got little side guards to keep her body straight and upright.

我们有小的侧卫来保持她的身体直立。

Keep your knees straight and touch the ground with your ears! called Charlotte.

“膝盖挺直，把你的耳朵碰到地面！”夏洛叫道。

Sorry. We have so many promising students, I can't keep them straight.

抱歉 我们这里出色的学员太多 记住他们的名字可不容易啊。

Stand up or sit down in a comfortable position (keeping your back straight, though).

以舒适的姿势站立或就坐（当然，要保持背部挺直）。

He is now able to play the cello really well and keep his bow straight.

现在他已经能拉大提琴了，而且也能拿稳他的琴弓。

No, you have to say it out loud all the time just to keep it straight in your head.

不，你要不断大声讲出来这样才能将它印在脑海中。

When you carry weight on your own, hold heavy objects to your chest, keeping your back as straight as possible.

当你独自搬重东西时，把重物放在胸前，尽可能保持背部挺直。

How do we keep these two words straight?

我们如何保持这两个词的正确性？

Jackie kept her posture straight and upright.

杰基保持着笔直的姿势。

She just can't keep everything straight.

她就是不能把一切都弄清楚。

They kept their priorities straight and paid due respect to public opinion.

他们明确了自己的优先事项， 并对公众舆论给予了应有的尊重。

Bend your knees, but keep your back straight.

【bend】膝盖弯曲，背部保持挺直。

And the dress also has little bones here actually, that keep you straight.

实际上，这条裙子在这里也有小骨头，可以让你保持笔直。

And she kept her posture straight as they ran.

他们奔跑时，她保持着笔直的姿势。