Impurity density
[电] 杂质密度
🧩 词语组成解析
🗣️ 情景例句
We'll head down there first thing tomorrow morning.
明早第一件事就是去那。
Please be on time.
请准时到。
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.
曾经有一个时期，芝加哥的店主和商行的老板们不得不拿出大笔的钱给歹徒以换取保护。