They compared how these organisms behaved when left in contact with different materials...他们比较了与不同材料接触时这些生物体的反应。The bulk of the text is essentially a review of these original documents...文章的主要部分基本是对这些原始文件的回顾。These weapon...
The snow - capped mountains stood out in sharp relief against the blue sky.白雪皑皑的山峦与蓝天形成了鲜明对比.Beyond these snow - capped mountains lies Rome!越过这些雪山就是罗马!Snow capped the roofs of the homes and trees.雪覆盖住了屋顶和树木....
There are telephone extensions in every room.每个房间都有电话分机.Some of the best extensions are made from sections of rod tube or drainpipe.最好的延长管中有些是用杆管或排水管制成的。There are telephone extensions in every office.每间办公室都有电话分机....