zhè / xiàng / gǎi / gé / zhuā / zhù / le / guān / jiàn / wèn / tí / zhēn / shì / sì / liǎng / bō / qiān / jīn

这项改革抓住了关键问题，真是四两拨千斤。

This reform addressed the key issue and achieved a great effect with little effort.