Airpacks
(airpack 的复数) n. (消防队员、搜索队员用的)氧气背包
🗣️ 情景例句
about our children's education.
对于我们孩子的教育。
Won't you come in, please?
请进来好吗？
Yes, I feel tired all the time.
对，我总是感到累。