trifecta
/traɪˈfektə/noun
1- N. Amer. & Austral./NZ a bet in which the person betting forecasts the first three finishers in a race in the correct order〈北美, 澳/新西兰〉（押赌者准确排定前三名的）三连中。参见TRICAST.
1.1
- in sing. a run of three wins or grand events三连胜; 接连三件大事：
today is a trifecta of birthdays.
今天有三人同过生日。
词源