Trojan horse

person or thing used to harm an enemy or opponent, who wrongly believes he is being helped 特洛伊木马（用以使敌方或对手上当误以为於己有益的破坏性的人或事物）.

trisection, trite, triumph, triumphal, triumphant, triumphantly, triumvirate, trivet, trivia, trivial, triviality, trivialization, trivialisation, trivialize, trivialize, trivialise, trivially, trod, trodden, troglodyte, troika, Trojan, troll, trolley, trolley bus, trollop, trombone, trombonist, troop, troop-ship, trooper, trope, trophy, tropic, tropical, tropically, troposphere, Trot, troth, Trotskyism, Trotskyist, trotter,