唏嘘 唏噓

    xīxū

    1. Onomatopoeiato sigh (onomatopoeia); to sob

    听到那段往事,老人们不禁唏嘘不已。Tīngdào nà duàn wǎngshì, lǎo rénmen bùjīn xīxū bùyǐ.Hearing that old story, the elderly people couldn't help but sigh.