doubles
['dʌblz]
n.
两倍( double的名词复数 );
一杯双份的烈酒;
极为相似的人;
（电影中的）替身演员;
v.
把…对折，折叠( double的第三人称单数 );
是…的两倍;
（使）加倍;
兼任;
例句:
-
She is equally at home on the singles or doubles court.
她单打和双打都能得心应手。
-
Vic Seixas and Doris Hart won the mixed doubles.
维克·塞克萨斯和多丽丝·哈特赢得了混合双打冠军。
-
She paired off with Alice in a tennis doubles match.
她在网球双打比赛中与阿莉斯结成一对.
-
It doubles down on the mistakes of the past.
来自WSJ
-
The requirement almost doubles the costs of the operation.
来自THETIMES
-
Every episode of PID doubles the risk of infertility.
来自BBC