Klein bottle
[数] 克莱因瓶
🧩 词语组成解析
n. 克莱因（男子名）
🗣️ 情景例句
Sir, I thought this was an emergency.
先生，我想这是一位急病患者。
Janet winked at her boy friend.
珍妮向男朋友眨眨眼。
During the night, it got terribly cold.
夜里，天冷得厉害。