It may take a couple longer than a year to conceive a problem known as subfertility or they may not succeed at all.

The Cause and Regulative Factors in the Subfertility of High-producing Dairy Cows

高产奶牛繁殖障碍的起因和调控因素

A powerful sorceress in Arthurian legend, Morgan le Fay is King Arthur's half-sister.

摩根是传说中的一位力量强大的女巫，她是亚瑟王同父异母的姐姐。

Byron's father, by his first marriage, had a daughter, Augusta, Byron's half-sister.

拜伦的父亲第一次结婚以后生了一个女儿，名叫奥古斯塔，即拜伦的同父异母姐姐。

it's believed, by the deaths of her mother and half-sister in quick succession, and then her father some years later.

据信，因其母及同母异父的姐姐相继离世，她第一次精神崩溃，几年后其父过世又引起了她第二次精神崩溃。

She was his half-sister, I think.

我想她是他的异父姐妹。

Manchester United defender Wes Brown will fly home after the death of his pregnant half-sister at the weekend.

曼联球员维斯布朗将会在周末飞回家中，他的姐姐在怀孕中去世。

Besides, his sisters were only his half-sister, being that his father had married Mrs.

再者，她们并非亲妹妹，只不过是他母亲过世后，他父亲再娶而生的骨肉罢了。

If you were married, and settled down, and were so unfortunate as to have known Steelman in other days, he would, if in your neighbourhood and deadbeat, be sure to look you up.

如果你结了婚、安了家，而又不幸以前曾认识斯蒂尔曼，那么只要他在你家附近而又闲着没事，他准会找上门来。

You'd better invite some woman you know to come on a visit, and pass her off as your sister, said Brown to his wife, while Steelman was gone for the beer.

你最好请哪个认识的女人到我们家来吧，让她冒充你的姐姐。

He took a day off to get thoroughly worked up in, came home that night full to the chin of indignation and Dunedin beer, and tried to kick Steelman out.

他请了一天假来使自己彻底激愤起来，到了晚上他回到家时，心里充满愤恨，肚里装满了度丁啤酒，试图赶走斯蒂尔曼。

Next morning Steelman was sitting beside Brown's bed with a saucer of vinegar, some brown paper, a raw beef-steak, and a bottle of soda.

第二天早上，斯蒂尔曼坐在布朗的床边，手里拿着一碟醋、一些牛皮纸、一块生牛排和一瓶苏打水。

There was no shaking off Steelman.

斯蒂尔曼是甩不掉的。

Few people care to call the police in a case like this; and besides, as before remarked, Steelman knew his men.

这种情况下没有多少人想到要叫警察；而且，如前所述，斯蒂尔曼了解与他相处的这些人。

Because its characteristics of covertness, naturalness, indirectness, it can reach a kind of imperceptible result in practice.

由于它具有隐蔽性、自然性、间接性的特征，因而在实践中能达到一种潜移默化的效果。

It does, though, raise important questions about how metabolic syndrome is treated.

虽然这个信息提出了关于如何治疗代谢综合症的若干重要问题.

Did you see the coverage the fetal alcohol people got themselves over this weekend?

你看到这个周末给胎儿酒精综合症患者的保险金总额 吗 ?

The Gold medal goes to Body Snatchers by BBC from the UK.

生命科学与医学类影片金奖获得者是英国广播公司制作的《身体掠夺者》.

Question 25. What is the difference between the old games and the new ones, according to Mark Starkey?

问题25根据马克·斯达克所说的，传统游戏和新游戏之间的区别是什么？

Starkey looked round for help, but all deserted him.

斯塔奇环顾四周求援，但是全都背弃了他。

Starkey says the letter changed the world.

史塔基说这均信改变了世界。