条件（从句）表示条件的语气、时态、从句或词 A mood, tense, clause, or word expressing a condition.
他语气中带有威胁的口吻。 A tone of menace entered into his voice.
人人都说令里根夫人极为不快的，乃是戈尔巴乔夫夫人尖锐的噪音，教授讲学的语气，以及教训人的态势。 By all accounts, it was Mrs.Gorbachev's higher-pitched voice, professorial tone and tendency to lecture that got on Mrs.Reagan's nerves.