ScienceDaily ( Aug.11,2010)& Primary dysmenorrhea ( PDM), or menstrual cramps, is the most common gynecological disorder in women of childbearing age.

Here, he contorts himself in a cramped lotus position and squinches up his face in a comical and constipated-looking effort.

此时，他把自己扭曲结成一团莲花坐，脸则扭曲成滑稽、罹患便秘的模样。

Although this is tied high enough, the lead rope is too short, causing the horse to hold his head and neck in an uncomfortable, cramped position.

尽管这匹马被栓得足够高，但是牵引索太短了。这导致这匹马必须让他的头和脖子保持一个难受麻木的姿势。

For a moment, stiffened by the cramped position in which she had slept, she could not remember where she was.

因为睡觉的地方过于狭窄，她蜷缩得浑身发僵，一时间竟想不起自己是在哪里了。

She knew that they were in a desperately cramped position inside the shell and were most anxious to break through and get out.

她知道他们已经在里面呆不安稳，急着打破蛋壳出来走走了。

CSG dam is a new dam type which use CSG material and constructed with craft of RCC.

CSG坝是使用CSG材料填筑并采用碾压混凝土坝的施工工艺施工的一种新坝型。

Glue the eyes to the owl with craft glue.

用手工艺胶水粘上眼睛。

Combining with craft requirement, computer monitor and management picture is finished.

并结合工艺要求组态工艺画面。

Schools and prisons with craft programs report that they have a calming effect and enhance social skills.

有手艺课程的学校和监狱报告说，这些课程能产生镇静的效果，并能提高社交技能。

( fig) To get a bus here you have to wait till the crack of doom, ie an extremely long time.

在这儿真要等到世界末日（很久很久以后）才能有公共汽车。

To get a bus here you have to wait till the crack of doom.

在这要等到世界末日才能有公共汽车。

The idea is that you invite your friends and colleagues over, crack open a bottle of wine, blast out a groovy playlist, then settle down with your laptop to clean up your emails.

其基本模式是，邀请好友以及同事来到自己家中，打开一瓶美酒，播放一个动听的音乐列表，然后大家拿着各自的笔记本电脑安顿下来开始清理电子邮件。

If you need an excuse to crack open a bottle tonight, this could be the perfect excuse.

如果今晚你想找个借口开瓶酒，这是再好不过的理由。

Why don't we crack open a bottle of champagne to celebrate?

我们何不开瓶香槟葡萄酒庆祝一下呢？

Infml come round and we'll crack open a bottle together.

上这儿来，我们开瓶酒喝。

None of them is expecting any favours, just a fair crack of the whip.

他们谁也不期望受到任何特殊照顾，只希望机会均等。

OK, you'd better get back to work unless you want me to crack the whip and start yelling at you.

好了，你最好回去工作了，除非你要我开始狠狠地对你吼。

He tried to crack the whip, but it was of no use.

他试著挥那鞭子，但是无济于事。

The captain will have to crack the whip if his side's performance it to improve enough to win the match.

如果一个队要想有长足进步以赢得比赛的胜利，队长得对队员采取严厉手段。

In one place we find a very narrow crack and spreading out from the sides of this crack is what looks something like moss.

我们在一个地方发现了一个非常窄的裂缝，并发现从这个裂缝中流出一些类似苔藓之类的物质。

Combined with the analysis of original stress state of existing tunnel considering segment joints, the important internal causes of crack are found out.

结合对考虑拼接缝的既有隧道管片受力状态的分析，找到裂缝隔片产生在连接块上的重要内在原因。