performance的讀音是英[p?f?m?ns]，美[p?r?f?rm?ns]。
n.性能；績效；表演；執行；表現。復數performances。
雙語例句
1、The new mobile phone not only has good?performance, but also has a beautiful appearance.
新款手機不但性能好，外觀也很漂亮。
2、The coach praised the boy for his excellent?performance?in the competition.
教練稱贊了這個男孩在比賽中的出色表現。
3、High-performance?cars are the most expensive.
性能卓越的車價格最高。
4、Inside the theatre, they were giving a?performance?of Bizet's Carmen.
他們正在劇院裏表演比才的卡門。