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    情不自禁

    qíngbùzìjīn

    1. (idiom) cannot refrain from; cannot help; cannot but

    看到他开心的样子,我情不自禁地笑了起来。 kàndào tā kāixīn de yàngzi, wǒ qíngbùzìjīn de xiàole qǐlái.