🧩 词语组成解析
sierra
[[si'erə]]
n. 呈齿状起伏的山脉
[经] 里昂
monetary
['mʌnɪtɛri]
adj. 货币的，金钱的;钱的（尤指一国的金融）;金融的;财政的，财政（上）的;
monet=money货币 + ary 属于...的，关于...的 → a. 钱的,货币的,金融的
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Hello.
好。
A liar is not believed when he speaks the truth.
骗子说真话，也没人相信。
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一种能够燃烧而不能爆炸的气体，一种味道不很强的而且不使人致死的气体。