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过去完成时 back




翻译: 后退, 支持

过去完成时



您是网页 常规动词 back

过去完成时 (Past perfect)

I
had backed 
you
had backed 
he/she/it
had backed 
we
had backed 
you
had backed 
they
had backed 


不定式

back









规则动词 & 不规则动词