柯林斯詞典narrow down (narrowing,narrowed,narrower,narrows,narrowest) 1. PHRASAL VERB If you narrow down a range of things, you reduce the number of things included in it. 縮減 What's happened is that the new results narrow down the possibilities. 現(xiàn)有的情況是,新的結(jié)果縮小了可能性的範(fàn)圍。 返回 narrow down