Balf
abbr. 支气管肺泡灌洗液（Bronchoalveolar Lavage Fluid）
🗣️ 情景例句
Mr. Nelson.
Nelson先生。
I've brought a wonderful book you might like.
我带起来了你可能喜欢的好书。
NASA is now going to put the telescope right,
国家航天局准备纠正这一错误，