短語詞組用作形容詞 (adj.)～+名詞backward area 落后地區(qū)backward child 遲鈍的孩子backward country 經(jīng)濟(jì)落后國家backward district 落后地區(qū)backward glance 向后一看backward look 回顧backward movement 反向運(yùn)動backward part 落后地區(qū)backward process 相反的程序backward region 落后地區(qū)backward season 遲來的季節(jié)backward student 落后的學(xué)生backward suitor 羞怯的求婚者backward technique 技術(shù)落后backward movement of the truck 卡車的倒車backward fall into the water 仰天跌入水中副詞+～intellectually backward 智力差～+介詞backward at 在…上差backward in 在…方面落后短語Send Backward 后移一層;放在后一層;退到后層;退到最后backward welding 反向焊;后傾焊;退焊;后退焊backward gear 倒檔齒輪;[機(jī)]倒退機(jī)構(gòu);倒退裝置backward motion 反向運(yùn)動;逆向運(yùn)動;回行運(yùn)動;倒退backward ad 向后;向后逆倒backward reasoning [計(jì)]反向推理;后向推理;反向推理backward slip [機(jī)]后滑;后滑backward precession 逆旋進(jìn);反進(jìn)動backward counter 減法計(jì)數(shù)器;[計(jì)]反向計(jì)數(shù)器;反向計(jì)數(shù)器step backward 倒退；返回；逐幀倒放backward extrusion 反擠壓；反向擠壓；逆向擠制backward compatibility 向后兼容；反向兼容性backward position 反轉(zhuǎn)位置，回程位置backward integration 向后整合backward wave oscillator 逆波振蕩器backward somersault 倒毛跟斗；倒筋斗跳；后空翻 返回 backward