allow oneself to be led by the nose; allow oneself to be ordered about;always do as one is told; be absolutely obedient; beat the mercy of others
? 你怎么能糊涂得～？ How can you be so muddle-headed as to allow yourself to be led by the nose?
聽人穿鼻tīnɡ rén chuān bí
聽：任憑；穿鼻：給牛鼻子穿繩，任人牽引。比喻毫無主見，任人擺布。be at the mercy of others, be absolutely obedient, allow oneself to be ordered about