wing rudiment翅迹
rudiment t残遗瀑
morbid rudiment致病原体
epicortical rudiment原始体
hippocampal rudiment[胚] 海马始基;围绕胼胝体的海马残体;海马始基
historical rudiment历史痕迹
lens rudiment晶状体原基英语;晶状体原基
haustorial rudiment吸器初生体
organ rudiment瀑原基
"he mastered only the rudiments of geometry"
同义词：first rudimentfirst principlealphabetABCABC'sABCs
"Meckel's diverticulum is the rudiment of the embryonic yolk sac"