a word 可以是“一个单词”，也可以是“一句话” 例如：
A truer word was never spoken.一字不差，字字为实。
‘I can't hear a word!' I said angrily.’ ‘我一句也听不见了!'我愤怒地说。
in a word 一句话, 总而言之
have a word with sb. 和某人谈一两句话, 和某人谈谈
the word 某个特定的词或话
Home is the word for the place we live.
家这个词的意思是指我们住的地方。
The word he said enouraged me.他说的话激励了我。
words 歌词，台词；谈话，言语
Home is the word for the place we live.
家这个词的意思是指我们住的地方。
Words failed me.; My tongue failed me.
我激动得讲不出话来。
have words with 和...争论[争吵]
word 消息, 音信, 谣言, 传说
No word has come from the battle front.
前线还没有消息传来。
your words 你说的话
Tell me in your own words.
用你自己的话告诉我。
your word 你的承诺/诺言
I hope you will always respect your word.
我希望你能始终遵守自已的诺言。
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