When you're sitting down your posture should be upright.

当你坐下来时，姿势要端正。

Your sitting posture, while you work on the computer can significantly impact your back and neck.

对着电脑工作时，你的坐姿对背部和颈部的影响很大。

He wriggled to a sitting posture horrified and disgusted.

他惊恐而厌恶地扭动着坐姿。

Fagin made no answer, but bending over the sleeper again, hauled him into a sitting posture.

费金没有回答，只是又弯下身子，把他拉起来坐下。

Lifting himself with great exertion, to a sitting posture, he saw two men, on horseback, in the flooded meadow, a little below him.

费力地撑身坐起，他看到在已被洪水淹没的低洼地里有两个人骑在马上。

He was so weak, that he could scarcely raise himself into a sitting posture; when he had done so, he looked feebly round for help, and groaned with pain.

他太虚弱了，几乎不能坐起来。当他这样做时，他无力地四处寻找帮助，痛苦地呻吟着。

' Uttering this exclamation in a tone of great surprise, as his eyes rested on Oliver, Mr. Toby Crackit brought himself into a sitting posture, and demanded who that was.

’托比·克拉基特先生的眼睛停留在奥利弗身上， 以一种非常惊讶的语气发出这声惊呼， 让自己坐下， 并质问那是谁。

Ere long, I became aware that some one was handling me; lifting me up and supporting me in a sitting posture, and that more tenderly than I had ever been raised or upheld before.

不久，我意识到有人在对付我；将我举起并以坐姿支撑我，这比以往任何时候都更加温柔。

Each compartment is so arranged that the occupant must assume and retain a sitting posture, and, consequently, the five prisoners are seated one upon the other, and yet separated one from the other by partitions.

每个隔间的布置使得乘员必须采取并保持坐姿， 因此，五名囚犯一个坐在另一个上， 但一个与另一个被隔板隔开。

Margaret felt sure she ought to have the greater freedom of breathing which a more sitting posture would procure; and, without a word, she raised her up, and so arranged the pillows, that Bessy was more at ease, though very languid.

玛格丽特确信她应该有更多的呼吸自由，而更多的坐姿会带来这种呼吸；她一言不发地把她扶起来，整理好枕头，贝西虽然很无精打采，却更自在了。