talk down 1. 以滔滔不绝的大声议论压倒 talk down a roomful of scholars 舌战一房间的群儒而取胜 2. 以居高临下的口气说话 Now that he is at university, he talks down to all his relatives. 他现在算是大学生了，对亲戚讲话竟一律带上高人一等的口气。 3. 以言辞贬抑；发表公开声明贬低(货币等)的价值 4. 用无线电通话引导(飞机、飞行员)着陆 The pilot was talked down through the fog. 飞行员被引导穿雾着陆。