但书 但書

    dànshū

    1. Nounproviso; qualifying clause

    合同中有一个但书,规定只有在特定条件下才能生效。Hétong zhōng yǒu yīge dànshū, guīdìng zhǐyǒu zài tèdìng tiáojiàn xià cáinéng shēngxiào.The contract includes a proviso that makes it effective only under specific conditions.