B. t. u.
[医] 英国热单位
🧩 词语组成解析
[医] 颞的
[医] 单位
🗣️ 情景例句
The vitality of the movement is threatened.
这个运动的生命力岌岌可危。
Mike found it difficult to adjust at first, but he's used to studying at Harvard now.
刚开始迈克发现很难适应在哈佛的学习，但现在他已经习惯了。
Yes, and full payment is due within 30 days.
是的，如果在30天骨付款就没有折扣。