bù / shēn / rù / diào / chá / jiù / tí / jiàn / yì / zhǐ / shì / gé / xuē / sāo / yǎng / bà / le

不深入调查就提建议，只是隔靴搔痒罢了

Offering suggestions without thorough investigation is just scratching an itch outside the boot.