求until 具体例子:Until the early 1970s,most archaeologists did no
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求until
具体例子:Until the early 1970s,most archaeologists did not consider the coast a possible migration route into the Americans because geologists originally believed that during the last Ice Age the entire Northwest Coast was covered by glacial ice.
我就不太明白 until 后面是肯定的信息的话那么其指代的时间点的前面则是否定的了么?比交困惑
具体例子:Until the early 1970s,most archaeologists did not consider the coast a possible migration route into the Americans because geologists originally believed that during the last Ice Age the entire Northwest Coast was covered by glacial ice.
我就不太明白 until 后面是肯定的信息的话那么其指代的时间点的前面则是否定的了么?比交困惑
not...,until...的句型意思是:直到.,才.
你给的具体例子的意思是直到20世纪70年代早期,大多数考古学家才开始把海岸线作为美洲人一条可能的迁移路线,因为.
主句的动作
在until后面的提到的时间前,是没有发生的.
换个句型:Most archaeologists started to consider the coast a possible migration route into the Americans in the early 1970s.
你给的具体例子的意思是直到20世纪70年代早期,大多数考古学家才开始把海岸线作为美洲人一条可能的迁移路线,因为.
主句的动作
在until后面的提到的时间前,是没有发生的.
换个句型:Most archaeologists started to consider the coast a possible migration route into the Americans in the early 1970s.
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