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
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
Which one is cheaper?
哪一个是较便宜的？
Oh! She's falling off her bike. I hope she didn't hurt herself.
噢！她正从自己的自行车上跌落下来。我希望她没有摔伤。