If astronauts are having sex , what are the chances of conceiving a child ?

如果宇航员确实“行动”了，那么怀孕的几率有多大？

The tricky thing about the wheel is not conceiving of a cylinder rolling on its edge . It 's figuring out how to connect a stable , stationary platform to that cylinder .

巧妙的是，轮子并不仅仅是构想出一个圆柱体在它的边缘滚动，而是如何将一个相对固定、静止的平台与这个圆柱体联系起来。

Some 15 per cent of couples have trouble conceiving , about half of them because the man has a problem .

有15%的夫妇怀孕有问题，其中大约一半是由于男性的问题。

The finding is in line with other recent work suggesting that stress relief might up the success rate for women who have trouble conceiving .

这个结果与最近其他研究工作一致，即缓解压力能增加怀孕困难妇女的怀孕成功率。

Dr. agarwal tells us that because our issue is egg quality , iuis are unlikely to significantly improve our chances of conceiving .

阿嘎沃尔医生告诉我因为我们的问题是卵子的质量问题，所以子宫内授精并不能显著地提升我怀孕的几率。