Sgr
abbr. 无铀伽马；钠石墨反应堆（Sodium Graphite Reactor）
🗣️ 情景例句
Please don't do it without asking.
未经允许请不要那么做。
Time and tide wait for no man.
岁月无情。
Later a neighbour told me about him.
后来，一位邻居告诉了我他的情况。