catch a cold和have a cold有什么区别?

catch a cold ,have a cold这两个动词短语均可作“感冒”解,但具体运用时是有区别的.l)catch a cold强调“感冒”的行为,have a cold表示“感冒”持续的状态.Yesterday he caught a cold.昨天他患了感冒.He has a bad...