The mandibles are usually lost, the labrum is reduced to a narrow transverse sclerite, and the labium is a small flap ( though its palps retain quite large).
上颚消失，上
为一条窄横片，下为一小片（下须
）。
,下,(无脊椎动物的)状部分,下瓣The mandibles are usually lost, the labrum is reduced to a narrow transverse sclerite, and the labium is a small flap ( though its palps retain quite large).
上颚消失，上为一条窄横片，下为一小片（下须）。
明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表
内容亦不代表本软件的观点；若
现问题，欢迎向我们指正。
