adj.向后的;反向的;发展迟缓的 adv.相反地;向后地 backward词组短语 backward area:落后地区 step backward:倒退;返回;逐帧倒放 backward country:经济落后国家 backward extrusion:反挤压;反向挤压;逆向挤制 backward compatibility:向后兼容;反向兼容性 backward同...
Ostriches don’t bury their heads in the sand—they wouldn’t be able to breathe! But they do dig holes in the dirt to use as nests for their eggs. Several times a day, a b...
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