alternate in轮流 ...alternatev.交替；轮流adj.间隔的；轮流的；交替的n.代替者；供替代的选择Alternate Launch Officer后备发射官alternate representative副代表; 候选代表alternate pathway theory交替途径alternate host parasites转住寄主寄生物alternate-index record备用索引记录Alternate Joint War Room后备联合作战室alternate delimiter type备用定界符类型, 交替定界符类型alternate current bridge交流电桥alternate valuation date备选估价日alternate interior angle内错角