短語詞組短語pace settler 領跑者catalyst settler 催化劑沉降器;繙譯;催化劑沉降器英語external settler 前牀conic settler 錐形沉降器conical settler 錐形澄清器settler n 移居者foreign settler 外僑Settler Wagon 開拓者Settler Top 沉澱池頂 返回 settler