翻译下面句子。
So valuable is friendship that we can't afford to destroy it.
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We cannot emphasize the importance of protecting our eyes too much.
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Meanwhile, the numbers of people, who have access to their own cars, have risen sharply in the recent years.
在他看来,没有比守时(promptness)更重要的事。
他紧张地走出了教室,额头冒着汗,腿哆嗦着。
众所周知,网络在我们的生活中起着越来越重要的作用。
他上下打量着我,好像是第一次看见我。(as if)
我们提前预定机票是明智的。(in advance)
他总是一副很了不起的样子,这让我们很生气。(with an air of)
I tremble to think what has happened to him.(英译汉)