to not be faithful to a person you have a relationship with, especially a sexual one, by having a secret relationship with sb else at the same time
Are you sure he's not two-timing you?
你肯定他没有背着你另有所爱？
1.〈非正式〉欺骗;对...不忠;脚踏两只船
1.两次的
1.【乐】二拍子
1.<informal>to be dishonest with your sexual partner by secretly having a relationship with another person at the same time
1.twice
1.[Music]meter of a musical pattern
1.Two-time Tony and Emmy award-winning American actor of stage and screen. He came out in 1998, lives with long-term partner in New York City.
舞台剧演员，获两次托尼奖、两次艾美奖。第一次出柜于1998年，和他的长期伴侣生活在纽约。
2.Each sub frames includes at least two time-adjacent sub frames, and reference signals are inserted in a subset of the sub frames.
每个子帧包括至少两个时间上相邻的子帧，并且将参考信号插入到所述子帧的子集中。
3.McGrady, a two-time scoring champion, recalled seeing those sort of adjustments from Battier when the players were on opposing teams.
麦迪，两届得分王，回忆巴蒂尔的那种自我协调，当他们还是对手的时候。
4.Dick Button, a two-time Olympic champion and longtime skating commentator, said the kiss-and-cry was made for unscripted moments like those.
两届奥运会冠军、资深花样滑冰运动解说员迪克-巴顿说”又哭又吻“的表现是为了那些电视脚本之外的时刻而设计的。
5.That not is say to be inpidually from Wu Dao's common assembly because a year only two time that month doesn't arrive.
那不是说距离武道大会只有一年两个月不到的时间了。
6.The two-time world champion, nicknamed 'Hurricane', had been suffering from throat cancer for a number of years.
两届世界冠军，被称为“飓风”的希金斯已经被喉癌折磨许久。
7.can in a week or two time get the results.
一个私人病理学家可以在一至两周的时间获得检测结果。
8.An old rivalry will resume as she faces Petrova, a two-time semifinalist at Bali in its first incarnation (in 2004 and 2008).
她将面对的是位老对手佩特洛娃。佩特洛娃已经在巴厘岛打入了两次半决赛。
9.Hye - kyeong tries to improve the team by recruiting some of her old teammates, including two - time Olympic gold medalist Han Mi - sook.
金惠敬试图提高团队招募她的一些老队友，其中包括两届奥运金牌得主韩谜淑。
10.Yang is the two-time defending world champion, and the all-around gold was expected to be a two-man contest between him and Hamm.
杨威曾经两次获得世锦赛冠军，奥运会全能金牌曾被认为是他和哈姆之间的双人对决。