心中无数

xīnzhōngwúshù

have no idea of how things stand; not know for certain

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心中无数

xīn zhōng wú shù

(work) without clear aims; not know for certain; not know what's what:

下一步怎么样， 我心中无数。 I'm not sure what will happen next.

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心中無數|心中无数 [xīn zhōng wú shù] ► to have no idea ► to be unsure