Translation

• without authority
• to usurp
• to arrogate to oneself
• to monopolize
• expert in
• to be good at

Synonyms

• 健, 善, 善于, 善用, 娴, 工, 拿手, 擅长, 能征惯战, 长于

Examples

• 他擅长骑马。
  He is good at riding a horse.
• 他不擅长开车。
  He is not a good driver.
• 他擅长应付小孩子。
  He is good at dealing with children.
• 但是他不擅于阅读英文。
  But he is bad at reading English.