good bye相當(dāng)于詞組，goodbye是單詞,它可以是名詞,也可以是感嘆詞。goodbye可以單獨使用，表示“再見”的意思。goodbye可以表達(dá)“再見”的意思。

1、good bye相當(dāng)于詞組，而good-bye是名詞，也是感嘆詞;goodbye與good-bye都可以單獨使用，表示“再見”的意思。goodbye與good-bye都是正確的表達(dá)，可以表達(dá)“再見”的意思。

2、關(guān)于“good bye”例句：

Goodbye! It was great to meet you. 再見!認(rèn)識你很高興。

She didn't even say goodbye to her mother . 她甚至沒有向母親道個別。

We waved them goodbye . 我們向他們揮手告別。

We've already said our goodbyes. 我們已經(jīng)道別了。

3、“good-bye”例句：

They hurried into the city to say good-bye to us. 他們趕進(jìn)城來和我們告別。

She left without so much as saying “ good-bye ”. 她甚至連“再見”都沒說就走了。

We said good-bye to each other at the station. 我們是在車站分手的。

I left in such a hurry that I didn't have time to say good-bye to you. 臨行匆忙，未能向你告別。

good byen.再見

say good bye to對某人說再見,告別…

kiss good bye吻別, 放棄,失去

say good bye to sb向(某人)告別

by the bye順便說到, 順便提起 附帶地

bye bye拜拜，再見

bye channel溢水道

leg byen. 〈板球〉擊中得分

bye for now再見

bye lawphr. 地方規(guī)則