Srsd
abbr. Space and Re-entry Systems Division 航天与再入系统处
🗣️ 情景例句
Keep your nose to the grindstone; you'll succeed.
埋头苦干，总有成功的一天。
We did it.
干的好！
Do you have anything like this in your stock?
你们库存中有象这样的东西吗？