Definition: the public system by which letters and packages are sent and delivered Level: A2
我妈妈喜欢通过邮件寄送礼物。
My mum likes to send gifts by ___mail.
你将通过邮件收到你的测试结果。
You will receive your test results by ___mail.
今天邮件里到了一个包裹。
A package arrived in the ___mail today.
