Srd
abbr. single radial diffusion 单向扩散; super red dust (tea) 特级红粉（茶）
🗣️ 情景例句
You will never guess.
你绝对猜不到。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
We're in Class Three, Grade One.
我们是在一年级，三班。