About
HSK levels

    1. (onom.) sound of cawing; sound of infant learning to talk
    2. variant of 呀[ya1]

    乌鸦发出哑哑的叫声。 wūyā fāchū yāyā de jiàoshēng.

    1. mute; dumb; incapable of speech
    2. (of a voice) hoarse; husky
    3. (bound form) (of a bullet, bomb etc) dud

    那位老人因为一场重病后变成了哑巴。 nà wèi lǎorén yīnwèi yī chǎng zhòngbìng hòu biàn chéngle yǎba.