IEmailSender: transport abstraction with SMTP implementation (SmtpEmailSender).
Alexander clarified, saying that if you told Moynihan, "'Go fetch this joke,' he'll find it."
，这一点在体育直播中也有详细论述
Отвергнутый влюбленный поджег себя14:50
exposed at the time the package was developed. In essence, this means