sincereadj.(指感情或行为)真实的; 诚挚的He offered a sincere apology for his behaviour.他主动对自己的行为诚恳地道了歉。(指人)诚实的; 直率的His mother is a sincere Christian.他母亲是个虔诚的基督教徒。loyaladj.忠诚的, 忠心的He is a loyal friend.他是一位忠诚的朋友。faithful adj.忠实的, 守信的We are all faithful listeners to the program.我们都是这档节目的忠实听众。 ...