Methanoyl
甲酰氧(基)
🗣️ 情景例句
Are the bathrooms on this train clean?
火车上的卫生间干净吗？
She seldom eats breakfase.
她很少吃早餐。
Their sleeping bags were warm and comfortable, so they all slept soundly.
睡袋既暖和又舒服，所以，他们都睡得很香。