这是一个if在虚拟条件句的省略用法:在虚拟条件句中,可将were, had, should提至句首,并将if省略.Had I time, I would come. 还原后为: If I had time, I would come. 如果到时候我有时间的话,我会来。 [对将来进行虚拟]类似于:原句 :If I were at school again, I would study harder. 省略if : Were I at...
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自告奋勇,说一下我的理解。 (不当之处,还请其他老师们多多指正。) Fossil bones that have caved in on themselves are thus a sign that the animal once had the bends. 句子主干: Fossil bones (主) are (谓) a sign (表). 化石骨是一种迹象。Fossil bones that h...
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