Eigendistribution
特征广义函数
🗣️ 情景例句
taking a vacation together--with the family.
要一起渡个假， 全家一起。
Today English is the international language of business and trade.
如今英语是商务和贸易的国际性语言。
he is lending the bank money, repayment of which he may demand at any time,
就等于把钱借给了银行。这笔钱他可以随时提取，