of the very best possible kind, degree, or standard
complete and without fault; with nothing missing, spoilt, etc.
agreeing in every way with an example accepted as correct
make (sth) perfect
"a perfect circle"
"a perfect reproduction"
"a perfect specimen"
"a perfect day"
"an arrant fool"
"a complete coward"
"a consummate fool"
"a double-dyed villain"
"a perfect idiot"
"what a sodding mess"
"stark staring mad"
"a thoroughgoing villain"
"the unadulterated truth"
"perfect your French in Paris!"
The other persons..not being very perfect in their duties.
出自： W. Whewell
Stokharin has perfected a painless death by poison.
出自： G. Vidal
He had..the opportunity and resources to perfect his prowess.
出自： A. Eden
The power-based society of the Westerner..ever concerned with perfecting their technological know-how.
出自： S. Biko
G. M. Trevelyan on Lady Jane Grey:As learned as any of the Tudor sovereigns,this gentle Grecian had a more perfect character than the best of them.
G.M.特里威廉在《Lady Jane Grey》中写道：在认识到都铎王朝的所有君主之后，优雅的Grecian比其他人具有更加完美的品质。
He tries to prefect his English.
He tries to perfect her English.
前后主语不一致，不能清楚表达句子的意思，应该改为He tries to help her to perfect her English.
误 Dolf tried to perfect their French.
误 Dolf tried to perfect themselves French.
正 Dolf tried to perfect his French.
正 Dolf tried to perfect himself French.