Without the elevator, they point out, there could be no downtown skyscrapers or tall buildings, and city life as we know it would be impossible.
他们指出,如果没有电梯,市区就不会有摩天大楼,也不可能有城市生活。
Mild enough, that is, for life as we know it.
这样才能足够温和,生命才能存在。
Water is a key ingredient for life as we know it.
我们知道水是生命组成的一个关键。
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