1. But a watch could never repair itself----it does not consist of living parts, only of metal, which wears away by friction.
    但是，手表决不会自行修理，它不是由有生命的部件组成，而是由金属组成，而金属可以随着磨擦而磨损殆尽。

2. But it was still too short a period for men to base a calendar on.
    但时间依然太短，人们无法以此为据制定历法。

3. But with such a large population base, the country must still convert millions more to the idea of birth control if it is to reach its population targets.
    但是因为该国的人口基数十分大，要想达到政府的人口目标，印尼还必须再转变几百万人的思想，让他们接受节制生育的观念。

4. For the simple reason that I was left with several curiously shaped bits of metal which did not seem to fit anywhere.
    原因很简单，因为还剩下几个形状奇特的零件似乎哪里也装不上去。

5. To betray a friend is a base action.
    出卖朋友是最卑鄙的。

6. The clatter of metal plates was heard from the kitchen.
    金属盘碟的哗啦声自厨房传出。

7. They poured the hot metal into the mould.
    他们把熔化了的金属倒进模子里。

8. The trainer stands in front of the elephant holding a long stick with a sharp metal point.
    驯练员手持一根有锋利金属尖头的长棒，站在象前。

9. These movements are controlled by the trainer with the metal-pointed stick,
    训练员要用有锋利金属尖的长棒控制它的这种举动，

10. These objects, however, were different. Lined up against the wall, there were long thin wires attached to metal spheres.
    这些展品却使人大开眼界。靠墙排列着许多细长的电线，而电线又连着金属球。

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