Bolier compound
[机] 锅炉防垢剂
🧩 词语组成解析
🗣️ 情景例句
once I print the article in the paper.
等我将这篇文章刊登在报纸上。
Old vessels must leak.
旧船必漏。
There are a lot of people in the swimming pool.
游泳池里挤满了人。