?complexion的正確讀音為/kmplkn/，其中重音在第二個音節上。它是一個名詞，指的是一個人的膚色或外貌特征，也可以用來形容某個事物的特征或狀態。

使用complexion時，可以用作主語、賓語或定語。作為主語時，表示某人的膚色或外貌特征。：

- Her complexion is fair and smooth. (她的膚色白皙光滑。)

- His dark complexion makes him stand out in the crowd. (他深色的膚色讓他在人群中顯得與眾不同。)

作為賓語時，表示某人感覺或表現出來的狀態。：

- The hot weather has affected her complexion. (炎熱的天氣影響了她的膚色。)

- He was pale and his complexion was unhealthy. (他臉色蒼白，看起來不健康。)

作為定語時，修飾名詞，并且通常放在名詞前面。：

- She has a beautiful complexion. (她有一張漂亮的臉龐。)

- The girl with a rosy complexion caught everyone's attention. (那個臉色紅潤的女孩吸引了所有人的注意力。)

除了指代膚色和外貌特征外，complexion也可以用來形容某個事物的特征或狀態。：

- The complexion of the situation changed when the boss arrived. (當老板到達時，情況發生了變化。)

- The complexions of the two paintings are completely different. (這兩幅畫的風格完全不同。)

例句參考：

1. Her complexion is as smooth as silk.

2. The hot weather has caused her complexion to become tanned.

3. He has a dark complexion, but his features are very delicate.

4. The complexions of the two sisters were almost identical.

5. The doctor told her to take better care of her complexion.

隨機生成的例句：

1. She was envious of her friend's flawless complexion.

2. His rough complexion made him look older than he actually was.

3. Despite using various skincare products, her complexion remained dull and uneven.

4. The cold winter air had turned her fair complexion into a rosy glow.

5. Her natural beauty was enhanced by her radiant complexion.

在撰寫時，我盡量避免使用規律性的語句結構和重復的詞匯，以增加文章的隨機性和自然度。同時，我也注意避免使用過于復雜的句子結構和生僻的詞匯，以保證文章易于閱讀和理解。

complexion是一個常用且多義的詞匯，在不同語境下可以有不同的含義。希望本文能夠幫助讀者更加準確地理解并正確使用這個詞匯。