Hazen's theorem
[医] 黑曾氏定理(净化公共给水可减少因病死亡)
🧩 词语组成解析
🗣️ 情景例句
Leave me alone.
让我一个人呆会儿。
$19.00 a day or $129.00 a week, unlimited mileage.
一天19美元，一周129美元，不计车程。
A lot of people can't tell the difference between an American accent and a Canadian accent.
许多人分不出美国口音和加拿大口音的差别。