backgear

英 ['bækdʒeər] 　 　 美 ['bækdʒeər] 　 　
  • n. 后齿轮(背轮)

backgear的相关资料：

临近单词

backlot back back shu points back-up alarm back-analysis backcalculation back to reality backflow region Back-Swimmers back space file Back somersault backseat driver
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