Srsd
abbr. Space and Re-entry Systems Division 航天与再入系统处
🗣️ 情景例句
Keep it down!
小点儿声！
I'm afraid I have bad news for you.
恐怕我有坏消息要告诉您。
climbed up the dunes, and sat down on a road.
爬上沙丘，最后停在路上。