Rief
abbr. recycling isoelectric focusing 再循环等电聚焦
🗣️ 情景例句
Charmed.
荣幸见到 。
The first step is the only difficulty.
万事起头难。
Don't close the window, Jim.Is he closing the window, Lily?
吉姆请不要把窗户关上。莉莉，他在关窗吗？