first-tierCOCA¹¹⁹⁰⁸⁴BNC¹²⁶⁴¹⁶⁺⁴iWeb⁴¹¹¹⁸Economist²⁹⁹⁰¹⁺⁴ 基本例句 🌏第一层；第一阶；最顶尖 Reflected in the industry, will be on first-tier cities in China start core shop does not profitable complained that extend to the core of the second-tier cities shops. 体现在业界，从业人员开始将对一线城市核心商铺不赚钱的抱怨，延伸到了二线城市的核心商铺。 texclo