Fabry-perot etalon
[化] 法布里-珀羅標準具
?? 詞語組成解析
佩羅（人名）
[計] 標準, 規格, 校準器, 標準樣件, 波長測定儀
??? 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4個青少年中就有1位曾經吸過大麻？
My treat.
我請客。
There was a tine when the owners of shops and businesses in Chicago that to pay large sums of money to gangsters in return for 'protection.
曾經有一個時期，芝加哥的店主和商行的老板們不得不拿出大筆的錢給歹徒以換取保護。