entries → 熟練
TSUMUGU · B2 · 詞
熟練 word · B2
熟練 ＝ 熟 ＋ 練
ㄕㄨˊ ㄌㄧㄢˋ · shúliàn
adjective — skilled, proficient, practiced

字源 FORM — what the parts do

熟familiar, well-practiced (熟悉)shú
練drill, train (練習)liàn
熟練，熟悉的熟，練習的練。