Military standards
[计] 美国军方标准
🧩 词语组成解析
n. 标准；规格（standard的复数）
🗣️ 情景例句
Did she say why she had to leave today?
她说了她为什么今天非走不可吗？
If the old dog barks,he gives counsel.
老狗叫，是忠告。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，