About
HSK levels

    收敛 收斂

    shōuliǎn

    1. to exercise restraint; to curb (one's mirth, arrogance etc)
    2. to dwindle; to vanish; to make vanish
    3. to astringe
    4. (math.) to converge

    他听到这个消息后变得收敛了很多。 Tā tīngdào zhège xiāoxi hòu biàn de shōuliǎn le hěnduō.