fluent /ˈflu:ənt/ adj. 流利的，流畅的：He was here because of his fluent Spanish. 他之所以能在这儿，是因为他能说一口流利的西班牙语。［考句］Though he was born and brought up in America, he can speak fluent Chinese.尽管他生在美国，长在美国，但他能讲一口流利的汉语。