bình lọc khí trời * ☊ 
air filter, air cleaner * ☊ cái lọ ngẳng cổ * ☊ a bottle with a slender and elongated neck * ☊ nhà máy lọc dầu * ☊ oil refinery * ☊ nhãn lọ thuốc ho * ☊ the label of a cough syrup bottle * ☊ bỏ lọt sót ☊ (S) to leave out and to miss [ Advanced Reading ]