老师您好!请问早在6000-7000年以前为什么可以用as early as 6,000 or 7,000 years ago而不能用long before 6,000 to 7,000? 二者的区别是什么?而且第一句里为什么用or连接6000和7000?谢谢老师!
1. as early as 6,000 or 7,000 years ago (正)
as early as 看作定语,修饰 6,000 or 7,000 years ago。or 表示选择,说话人拿不准具体数字时使用。
我把这个词组的来历演变一下:
1. 6,000 years
2. 6,000 or 7,000 years
3. 6,000 years ago,
4. 6,000 or 7,000 years ago
5. as early as 6,000
or 7,000 years ago
2. as long as long before 6,000 to 7,000? (误)
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