Mere talk and no action won't do.

只说不做,那是不成的.

《现代汉英综合大词典》

She is a straw woman who only talks but never acts.

她是个只说不做的稻草人.

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Lucy always telling , never doing.

露西只说不做.

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Hard work: All hard work bring a profit, but mere talk leads only to poverty.

坚苦工作: 所有坚苦工作皆带来赢利, 但只说不做只会使人变穷.

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