B.t.u.
abbr. 英国热量单位（British thermal unit）；英国商务部单位（Board of Trade Unit）
🗣️ 情景例句
Get away from me.
从我身边滚开。
You have to be on time. Don't be late.
只准早到，不许迟到。
We couldn't get across the river.
我们过不了河。