Blg
abbr. β-乳球蛋白（beta-lactoglobulin β-）
🗣️ 情景例句
How ofter have met with our competitors?
你多久遭遇我们的竞争对手一次？
I asked him if he spoke English.
我问他他是否说英语。
What's that?
那是什么日子？