Bipm
abbr. 国际计量局；国际度量衡局（The International Bureau of Weights and Measures）
🗣️ 情景例句
I'm sure everyone will be very happy with these gifts.
相信他们一定会喜欢这些礼物的。
It is never too old to learn.
为学不怕年高。
If, at the time, the British had not feared invasion, it would have been completed.
如果不是因为那时英国人害怕入侵，隧道早已建成了。