1. The first and most common is having low iron reserves, a condition that typically has no symptoms.
    第一也即最常见的阶段，是铁离子储量不足。这一阶段没有典型症状。

2. The effort to shield assets to be passed on to children and grandchildren is making prenups more common among retired people in their 60s and 70s who are remarrying after a spouse has died.
    保护自己的资产，使之能传到儿子和孙子手中，这种努力使婚前契约在已退休并丧偶、又准备再婚的六七十岁的老人当中更为常见。

3. True, I grew up in India, where arranged marriages are common.
    不错，我是在印度长大的，包办婚姻在这儿十分普遍。

4. These two countries share a common border that runs for thousands of kilometers, with not a single soldier along the way.
    两国有几千公里的共同边界，在这条边界线上没有一个巡逻的士兵。

5. No creature has received more praise and abuse than the common garden snail.
    没有一种生物所受到的赞美和厌恶会超过花园里常见的蜗牛了。

6. Never had such great respect been shown to any common man.
    还从来没有一个普通人受过如此礼遇。

7. However, even if prediction becomes possible, people who live in areas where earthquakes are a common occurrence will still have to do their best to prevent disasters by building structures that are resistant to ground movement and by being personall
    然而，即使可以预测，居住在地震频发区的人们还是应尽力预防灾难，办法是建造能够抵抗地表运动的房屋，同时做好个人准备。

8. Dislike of snakes or spiders is a common phobia.
    害怕蛇或厌恶蜘蛛是很常见的事.

9. And that if only the common peoples of the world could meet one another at football or cricket,
    还说各国民众若在足球场或板球场上交锋，

10. Despite extensive efforts by many schools to make good roommate matches, unsatisfactory outcomes are common.
    尽管许多学校已做了广泛的努力来为学生安排合适的室友，但常常有不如人意的结果。