在任何一个墨西哥城市转一圈，你都会注意到周围的嗡嗡声，就像一群愤怒的蜜蜂。
Stroll around any Mexican city for a while and you will notice a background hum like a swarm of angry bees.
任何一个因为高邮件和高粮价引起的购买力损失而沮丧的法国人都应该跨越大西洋到美国去转一圈看看，这样他们都会重新振奋一下精神了。
ANYONE in France dispirited by the loss of purchasing power stemming from high oil and food prices should be revived by a trip across the Atlantic.
我们发现月球环绕地球的轨道总是圆周形--或很近似圆周形。 每一个月，或者更确切些说是每27又1/3天就环绕地球转一圈。
We find that it is traveling in a circle - or very nearly a circle - round the earth, going completely round once a month, or, more exactly, once very 27 1/3 days.
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