1. From time to time, when I looked up from my page, I saw the master looking about him as if he wished to impress upon his mind everything in the room.
    我不时从练习纸上抬起头，每一次都看见老师在望着周围，仿佛要把教室里的一切都印在心上。

2. Food-shopping Americans are coming face to face with lasers and computers for the first time.
    美国人购买食品时就要与激光和电脑初交，

3. For the first time, the customer can see the transaction recorded — and gets a receipt on which every item he or she has picked out is printed by brand name, its price, even the time of purchase.
    顾客首次看到所购物品被登录——还能拿到一张收据，收据上明细地列出他所买商品的商标、价格，就连购买时间也列出。

4. From full moon to full moon was a good measure of time.
    从月圆到月圆是计算时间的一个很好的单位。

5. From time to time they slapped at the mosquitoes, or put their heads into the smoke to get rid of the pests.
    他们不时还拍打着蚊子，或是把他们的头放到烟幕中来驱除害虫。

6. For many, the departure at the airport is the worst time.
    对许多学生来说，在机场与亲友告别是他们最难受的时候。

7. From a worn letter located in his pocket, an emergency-room nurse learned that his son was a Marine stationed in North Carolina. Apparently there were no other relatives.
    一位急救室的护士在他口袋里发现一封揉皱了的信, 从信中知道他儿子是海军陆战队队员,随部队驻扎在北卡罗来纳州。显然, 他没有别的亲戚。

8. From time to time, according to his theory, passing ships and planes set off the crystal, which confuses their instruments and sucks them into the ocean.
    按照他的理论，过往的船只或飞机时不时会触动那块水晶，于是它会干扰它们的仪器，把它们吸入海底。

9. Finally, she'd say, "Well, if I can find time today, I'll call the medical worker."
    她最后总会说：好吧，如果今天我能抽出时间的话，我会找医务人员的。

10. For example, one U.S. corporation offered a large sum of money in support of a U.S. presidential candidate at a time when the company was under investigation for possible violations of U. S. business laws.
    比如，有一家美国企业曾因可能触犯美国商业法规而正受调查，此时它捐出一大笔款项支持一位总统候选人。