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吹哨子是blow whistle 但有没有whistle blow这个用法,有个练习上写着,但不应该是被动吗?

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吹哨子是blow whistle 但有没有whistle blow这个用法,有个练习上写着,但不应该是被动吗?
吹哨子是blow whistle 但有没有whistle blow这个用法,有个练习上写着,但不应该是被动吗?
(1) 动词:blow whistle = 吹口哨=Take a deep breath and blow 吹 the whistle...
(2) 名词:whistle blow = 吹口哨的动作/声音= Did you hear the whistle blow last night by the Policeman?
(3) 被动是:The whistle was blown by the older Policeman...
(4) 名词(人):whistle blower = 告密者
再问: The whistle blew and they began running. 对不对
再答: "The whistle blew and they began running" 不对! 因为 whistle 不可能自己响或吹... 正确: 1. They began to run as soon as the whistle was blown (by the teacher). 2. As soon as the whistle was blown, they started/began to run. 3. They began to run after the teacher blew the whistle. 4. A man fell into the Mount St. Helen's crater and blew his emergency whistle to let rescuers know he was alive and his location