Bhn
abbr. 布氏硬度值（Brinell hardness number）
🗣️ 情景例句
was supposed to be made into a community center
原计划改成一个社区交谊中心
I'm not really sure.
我不太清楚。
he answered me, but he spoke neither slowly nor clearly.
他回答了，但他讲得既不慢也不清楚。