光说不做 光說不做

    guāngshuōbùzuò

    1. Idiomto be all talk and no action; to preach what one does not practice (idiom)

    他总是光说不做,答应了很多事情却从来不履行。Tā zǒngshì guāngshuōbùzuò, dāying le hěn duō shìqing què cóngláibù lǚxíng.He's always a talker, promising a lot but never following through.