跳蚤能跳出自身长度350倍的距离， 人也能如此的话， 就相当于一个足球场的长度！
The flea can jump 350 times its body length. For a human, that would be equivalent to jumping the length of a football field.
对有些人来说，跳蚤市场和庭院售旧货是美国人对物质占有过分关注的一种迹象。
To some people, flea markets and yard sales are a sign that Americans are too concerned with material possession.
另有一些人有正规的工作，到跳蚤市场来挣点额外的钱。
Others have traditional and earn a little extra money at flea markets.
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