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HSK levels

    加以

    jiāyǐ

    1. (formal) to apply; to carry out; to take action to (do sth) (used before a disyllabic verb, indicating that the action is directed at sth previously mentioned, e.g. 加以說明|加以说明[jia1 yi3 shuo1 ming2]); to apply (restrictions etc); to give (support, consideration etc)
    2. (literary) moreover; in addition

    我们需要加以改进这个计划。 Wǒmen xūyào jiāyǐ gǎijìn zhège jìhuà.