This was combined with ground-up mammal bone, the traces of which show signs that it was heated being ground.
例句中 be heated 后为什么能直接加另一个动词 being ground,此处是省略了and对吗?
This was combined with ground-up mammal bone, the traces of which show signs that it was heated being ground.
it was heated being ground 有以下几种理解
(1)现在分词做时间状语相当于while it was being ground, ground 是动词 grind过去分词
(2)省略介词it was heated before being ground,介词+动名词被动结构
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遇到这种情况,你就应该核对原文,查看是否抄写有误。我搜到的原文如下:
http://blog.sina.com.cn/s/blog_184bb1de60102yut3.html
……
First, the pieces of ochre were rubbed on quartzite slabs and crushed to produce a red powder. This was combined with ground-up mammal bone, the traces of which show signs that it was heated before being ground. The ochre powder and the bone pieces were mixed with charcoal, stone chips, quartz grains and a liquid (perhaps water) and was then transferred to abalone shells to be gently stirred before being ready for application.
研磨之前先经过加热。
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