Balf
abbr. 支气管肺泡灌洗液（Bronchoalveolar Lavage Fluid）
🗣️ 情景例句
Is this the window for claiming parcels?
这是领取包裹的窗口吗？
You're thinking too much.
你也未免想太多了吧！
I'm enjoying this. Where exactly are we going?
我喜欢这次旅行。我们到底要去哪里？