Usas
[计]= United States of America Standard,美国国家标准
🗣️ 情景例句
This is my friend Harry Bennett.
这是我的朋友Harry Bennett。
We kept on discussing the problem for four hours.
我们持续讨论那个问题达四小时。
It is not only of immense size, but is extremely accurate as well.
此钟不仅外型巨大，而且走时也非常准确。