Fdos
n. 软磁盘操作系统
🗣️ 情景例句
What are you up to?
你在忙些什么？
Without a friend the world is a wilderness.
没有朋友，世界就等于一片荒野。
In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro.
1948年他去了刚果的基伍湖，对一座后来被他命名为基图罗的新火山进行观察。