?Although是一個連詞，用來引導一個從句，表示對比關系。它常常用來表示兩個相對矛盾的事實，前面的事實往往是已知的，后面的事實往往是出乎意料的。以下是although的用法及例句。

1. Although he is rich, he is not happy.

雖然他很有錢，但并不快樂。

2. Although she is young, she has a lot of experience.

雖然她年輕，但經驗豐富。

3. Although it was raining, we still went for a walk.

雖然下著雨，我們還是去散步了。

4. Although I don't like him, I have to admit that he is talented.

雖然我不喜歡他，但我不得不承認他很有才華。

5. Although the exam was difficult, I managed to pass it.

雖然考試很難，但我還是通過了。

6. Although she had a lot of work to do, she still found time to exercise.

雖然她有很多工作要做，但她還是找到時間鍛煉身體。

7. Although the movie received mixed reviews, it was a box office success.

雖然這部電影收到了褒貶不一的評論，但票房卻非常成功。

8. Although they were rivals on the court, they were good friends off the court.

雖然他們在球場上是競爭對手，在場外卻是好朋友。

9. Although he is a famous actor, he still takes the time to volunteer at a local charity.

雖然他是一位著名的演員，但他仍然抽出時間在當地的慈善做志愿者。

10. Although it was her first time cooking, the meal turned out to be delicious.

雖然這是她第一次做飯，但最后的結果卻很美味。

although可以用來表達對比關系，強調前后兩個事實的矛盾性。它常常用來連接兩個句子或者短語，讓句子更加豐富和有層次感。同時，在寫作時也可以使用although來增加句子的變化，避免重復使用相同的詞匯和句式。因此，在寫作中靈活運用although是非常重要的。