Hepa
[醫][=high efficiency particle arrestor]高效粒子阻攔裝置
??? 情景例句
It was a wonderful meal, Mrs. Stewart.
真是一頓精美的晚餐 Stewart太太。
Send a postcard to me when you arrive in Shanghai.
你到上海以后給我發張明信片。
Fred Pearson was walking through the university town of Oxford one morning in 1961.
1961年的某個早上，弗雷德·皮爾遜正步行通過牛津大學城。