1. My nursery-school (托儿所) child with the sweet voice was replaced with a confident character in long trousers, who forgot to stop at the corner and wave good-bye to me.
    我那个嗓音悦耳、上托儿所的孩子成了一个穿长裤、很自信的人了。这孩子忘了在拐角处停下来和我挥手告别。

2. Once the existence of this wave-length had been discovered, it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
    一旦这种波长的实际存在被发现，提出把它作为星际间唯一可辨认的广播频率就为期不远了。

3. Then up into the wave, then forward with it and then----as the wave leaves the particles behind----back to its starting point again.
    然后推上波浪，随着波浪移动，然后 -- 当波浪把微粒留在身后时 -- 又回到出发点。

4. If the water was moving with the wave, the ocean and everything on it would be racing in to the shore with obviously catastrophic results.
    如果水和浪一起移动的话，那么大海和海里所有的东西就会向岸边疾涌过来，带来明显的灾难性后果。

5. In a heat wave we choose a midnight birthday party and that is the most exciting of all.
    天气炎热时，我们便选择在半夜举办生日聚会，这种聚会是最令人激动的。

6. If they refuse a request, they immediately feel a wave of regret for having been so strict or ungenerous.
    如果他们拒绝孩子的请求，他们会立即因为对孩子太严格或太不慷慨而感到一阵后悔。

7. I usually spoke to them in passing. I'd wave at them and when they returned my wave, I would say a few words of greeting.
    顺便还与他们搭几句话。我向他们挥手，如果他们也向我挥手，我还与他们打招呼。

8. From both maturity to death, a wave is subject to the same laws as any other ´living´ thing.
    从成熟到消亡，波浪和其他任何"活动中"的东西一样，都受制于共同的法则。