Sterad
球面(角)度, 立体角度的单位
🗣️ 情景例句
Hello, my name is Tom with Steve Rogers.
喂，你好，我是Steve Rogers公司的汤姆。
Delays are dangerous.
坐失良机必有忧患。
They had got away with thousands of pounds worth of diamonds.
他们已带着价值数千镑的首饰逃之夭夭了。