Ultramicrosome
超微粒体
🗣️ 情景例句
Don't worry, it's in the bag.
不用担心， 这事儿十拿九稳。
How much is it by registered mail?
挂号信要多少钱？
Mr. Green doesn't climb down the chimney. He waits until the children are asleep.
格林先生不从烟囱上爬下来，他等候孩子们都睡熟。