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    发出求救信号 (fāchū qiújiù xìnhào, send a distress signal)

    Grammar & Usage

    fixed expression
    neutral

    How it works

    This is a verb phrase, consisting of the verb '发出' (to send out/issue) followed by its object '求救信号' (distress signal). The structure is V + N, where the noun itself is a compound indicating 'asking for help signal'. It functions as a single unit.

    Sample sentences

    飞机坠毁前，飞行员曾发出求救信号。

    Before the plane crashed, the pilot had sent out a distress signal.

    遇到危险时，一定要及时发出求救信号。

    When encountering danger, you must send a distress signal in time.

    海上搜救队正在努力接收失踪船只发出的求救信号。

    The maritime search and rescue team is trying to receive distress signals sent by the missing vessel.

    Quick facts

    composition:The phrase literally means 'issue/send out (发出) a signal (信号) for seeking help (求救)'. '求救' acts as an adjective modifying '信号' here, but is inherently a verb-object compound itself (求 'seek' + 救 'help/rescue').

    Mnemonic

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    Example

    飞机坠毁前，飞行员曾发出求救信号。

    Before the plane crashed, the pilot had sent out a distress signal.

    遇到危险时，一定要及时发出求救信号。

    When encountering danger, you must send a distress signal in time.

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