Nist
[计] 美国国家标准及技术研究所
🗣️ 情景例句
It's a book of pictures.
这是一本摄影集。
The feature started at 9 o'clock and ended at 11:30.
放映在9点钟开始了并且将在11:30结束了。
We can't make up our minds.
我们还拿不定主意。