Srsd
abbr. Space and Re-entry Systems Division 航天与再入系统处
🗣️ 情景例句
I think aerobics is easy.
我觉得有氧运动很容易。
Cool it man，I'm sorry.
对不起，请您息怒。
For the first time in his life, he became the proud owner of a bed which had springs and a mattress.
他平生第一次自豪地拥有了一张既有弹簧又带床垫的床。