"infrahuman animals"
infractv.犯;违反;侵害
infraadv.(书等的)下文;在下面
infragravity wave长重力波
infratrame coding帧内编码
infrajugal arcade颧下弓
infradian rhythms外节律
infracardiac type心下型
infraction of law违法
infrahyoid muscle舌骨下肌(动)
infra-red range红外线范围
infrasound source次声源
infrappetiole bud叶柄下芽