Bau
abbr. basic assembly unit 基本装配件; 基本部件; basic assembly unit Basic 汇编部件; British absolute unit (BTU, Btu) 英制绝对单位（英国热量单位, 等于252卡）
🗣️ 情景例句
Thank you.
谢谢 。
How long have you been studying English?
你学了多长时间的英语了？
I turned to look at the children, but there weren't any in sight: they had all run away! The man laughed when he realized what had happened.
我转过头去看那些孩子，但一个也不见，全都跑了！当那个人明白了发生的事情时，笑了起来。