I."perfect" là ngoại động từ
II. Cách dùng động từ "perfect"
=If you perfect something, you improve it so that it becomes as good as it can possibly be / to make something free from faults
- We perfected a hand-signal system so that he could keep me informed of hazards.
- I removed the fibroid tumours, using the techniques that I have perfected.
- He is keen to perfect his golfing technique.