落后这个单词昨拼写?
behindhandadj.adv.prep.落后的,耽误的laggardadj.缓慢的迟缓的,落后的n.落后者fallbehindTofailtokeepupapace;lagbehind.落后:跟不上步伐;落后Tobefinanciallyinarrears.拖欠:经济上欠款fallbehindinv.在...方面落后
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behindhandadj.adv.prep.落后的,耽误的laggardadj.缓慢的迟缓的,落后的n.落后者fallbehindTofailtokeepupapace;lagbehind.落后:跟不上步伐;落后Tobefinanciallyinarrears.拖欠:经济上欠款fallbehindinv.在...方面落后