1. Such is the common notion.
    一般的看法就是这样。

2. Smith is a common English surname.
    史密斯是常见的英国姓.

3. Snap judgments like "love at first sight" or "instant hate", if taken seriously, have usually been considered signs of immaturity or lack of common sense.
    像“一见钟情”或“瞬间成恨”这样的快速判断，如果被过于当真，通常就会被看成是不成熟或缺乏判断力的表现。

4. Studies of Olympic athletes, world-class musicians and chess masters show that their common trait is the ability to motivate themselves to pursue harsh training routines.
    对奥运选手、世界级的音乐家和国际象棋大师的研究表明，他们的共同特点就是具有促使自己坚持艰苦的日常训练的能力。

5. Peter and I have a common interest in footbal.
    彼得和我对足球有共同的兴趣。

6. Preventing one case of AIDS means preventing many future cases, while preventing a case of measles(麻疹) or malaria(疟疾) in Africa would have little effect on its spreading, since those diseases are already common in many countries.
    预防一例艾滋病意味着为以后减少许多例艾滋病。而在非洲，预防一例麻疹或疟疾病对于防止疾病的蔓延起不了多大作用，因为这些疾病在许多国家已经是常见病。

7. People are amazed at your "insight" because most are so vain (爱虚荣的) they can't imagine how much they have in common with the rest of the population.
    他们会惊讶于你的"洞察力"，因为多数人太爱虚荣，以至想像不到自己实际和其他人一样平庸。

8. Jack Baxter, a common American of 2084, glanced at his stop-watch.
    杰克·巴克斯特是生活在2084年的一个普通美国人，他瞄了一眼自己的计秒表。

9. — Unmarried mothers are increasingly common virtually everywhere, reaching as many as a third of all births in the north of Europe, for example.
    ——未婚妈妈越来越常见，几乎到处都有。比如在北欧，未婚生育的孩子占出生率的三分之一。

10. Granted, a preponderance of Germans is a characteristic that seems common to most Mediterranean sites;
    在大多数地中海露营地里，德国人占优势似乎是个普遍现象，确实如此，