Oxygen apparatus
[化] 氧气设备
🧩 词语组成解析
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
My favorite game when I was a child was making snow angels in the freshly fallen snow.
我在孩提时代最喜欢玩的游戏，是在刚下的雪上堆雪天使。
It was his job to repair bicycles and at that time he used to work fourteen hours a day.
他那时的工作是修理自行车，并且通常是一天工作14个小时。