放心,几个词、一句话都可以,就是【总之】的意思.
首先英语词典里的解释
1.briefly or very concisely expressed
2.used for giving the shortest answer possible, without explaining anything
绝对没有提只能一个词,只是说简明扼要的,最短的什么的
其次,《英汉大词典 第2版》,例句如下
John is smart, polite, and well-behaved. In a word, he is admirable