Stand naturally, not too stiff or slumped.

站姿要自然，不要太僵直也不要太颓靡。

This stiffening spreads through the muscles, and its speed can be affected by age, gender, and the surrounding environment.

这僵直透过肌肉间扩散，僵直的速度会依年龄、性别和所处环境变动。

They stiffen about two to six hours later in what's known as rigor mortis.

约二至六小时过后，尸体僵直进入所谓的尸僵。

Because the ribs and vertebrae are involved in breathing, stiffness can cause shortness of breath.

因为肋骨和椎骨参与呼吸过程，其僵直会引起气短。

They were stiff in the thighs, but he could feel the muscles fluttering.

他的大腿僵直，但是他感觉得到肌肉在颤动。

Finally the boys were hungry, and I got up stiffly to follow them back.

男孩们最终觉得饿，我僵直地站起来，跟着他们回去。

Some lay stiff and still but many writhed under the hot sun, moaning.

有的静静地僵直地躺着，也有许多蜷伏在太阳下呻吟。

And now there was not a trace of that girl in the stiff figure sitting on the mule.

可如今那位姑娘的一点影子也没有，下的是个骑在骡子背上的僵直身躯。

I sat very still, the chill of his touch a natural warning-a warning telling me to be terrified.

我僵直地坐在那里，他的来的寒意是一种本能的警告——警告我应该感到恐惧。

A swift rigidity fell on all of them as James lurched one step forward into a crouch.

当詹姆斯蜷下腰向我踏出第一步的时候，所有人都迅速地僵直起来。

Good, then. The enthusiasm in Jasper's voice was catching, naturally. I found myself eager, rather than scared stiff.

“那么，很好。”自然地，贾斯帕话语里的热情很有感染力。我发现自己也热切起来，甚至远甚于恐惧的僵直。

His chin was cocked upward and his eyes were fixed in a dreadful, rigid stare at the corner of the ceiling.

他的下巴向上翘起，他的一双眼睛恐怖地、僵直地盯着天花板的角落。

But in fact the float exploits a quirk in shark biology, exhausting it so much, it enters a state known as tonic immobility.

事实上，是木浮利用鲨鱼生理上的特点使它精疲力尽，进入紧张性僵直的状态。

The enormous tail of the Edmontosaurus typically used to balance its massive frame, was reinforced by a series of interconnecting rods that made it stiff but strong.

埃德蒙顿龙通常用来平衡其庞大骨架的巨大尾巴，由一系列相连的骨棒加强，使它僵直但是强壮。

The nausea swept over me, the choking tension, the buzzing in my ears, my stomach knotting and stretching as if it wanted to tear itself out of my body.

我觉得全身一阵恶心，肢体紧张僵直，耳中有许多声音鸣响，胃不停地纠结拉扯，好像要从体内撕裂开来。

Suddenly she swung about, rigid as a pointer, and stared with horror-struck eyes down the hall, down the covered passageway toward the kitchen. There was smoke coming from the kitchen!

她突然像根指针似的僵直地转身，睁着一双惊恐的眼睛从穿堂、过道一直向厨房望过去，厨房里也在冒烟啊！

He could leave His own body, letting it slump stiff and lifeless in His chair for five minutes while He travelled to the Kashmir Front or the seashore at Mumbai.

他可以离开自己的身体，让它在椅子里陷入僵直和毫无生气的状态达五分钟，此时他飞往克什米尔前线或者孟买的海滨。

So ankylosing spondylitis is a chronic inflammatory disease that affects the vertebral joints and makes the spine really stiff, but can also cause inflammation in other parts of the body like the eyes and blood vessels.

因此，强直性脊柱炎是一种累及脊柱关节并使脊柱变得僵直的慢性炎症性疾病；它也会累及身体其他部位，如眼部和血管。

The young man stood as stiff and straight as the church columns around him. There was a little quiet laughter from some of the women，but soon they were silent again，waiting for the end.

几天后，在士兵们驻扎的威瑟伯里以北的一个镇上，一场婚礼正在筹备之中。广场上教堂的钟在十一点半敲响时，一个年轻英俊的士兵向教堂走去，他向牧师讲明情况，然后静静地站在教堂中央，等待着他的新娘。教堂里满是参加早祷的女人和姑娘们，她们想等着看婚礼。她们望着年轻人笔直的后背，悄声议论着。这个士兵一动不动地等待着。教堂十二点差一刻的钟声敲响，新娘还是没有到。窃窃私语声停止，教堂里寂静无声。那个年轻人僵直地站着，就像他身边教堂里的柱子。有些女人发出低低的笑声，但她们很快就又安静下来，等待着最后的结果。

Miss Margitan sat ramrod-straight with her arthritic hands folded in her lap and her gray eyes fixed unflinchingly on my face, and I realized that something about her was different from any other adult I had ever met.

她僵直地坐在那里，害关节炎的双手合在腿上，灰色的眼睛毫不妥协地瞪着我的脸，那时我意识到，她什么地方跟我之前遇到的大人都不一样。