中英释义：
双语例句
你知道我会有多么高兴，直到我明白请客吃饭只是一个玩笑。
You see how delighted I am until I realize the dinner is a funny joke.
重点词汇
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只是
just; merely; only; simply; but; however; sommer; nothing but; the only thing is; except
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一个
singleton; single; one; an
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玩笑
joke; jest; prank; trick; lark; banter; pleasantry; jape; gag; quip