但是的用法和樣例：
例句
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他們探索過各種途徑，但是沒有找到解決的辦法。
They exploded every avenue but could not find a solution.
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那把椅子原本是為你準備的，但是被她拿走了。
The chair was intended for you, but she took it away.
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我喜歡他的寫作風格，但是不喜歡他的內容。
I like the style of his writing but I don't like the content.
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嚮導離他們而去，但是他們毫不氣餒，仍向森林進發。
Their guide deserted them, but, nothing daunted, they pressed on into the jungle.
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他很有天賦，但是他已經喪失了信心。
He has great talent, but he has lost his faith.
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商業信函必須是正式的，但是寫信給朋友應寫得自然一些。
Business letters must always be formal, but we should write in a natural way to friends.
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我想把機器修理好，但是失敗了。
I tried to fix the equipment but I failed.
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我打過電話了，但是沒有人接。
I've called but nobody answered.
短語
以上內容獨家創作，受著作權保護，侵權必究
