名词
中文翻译：慢邮
同义词：
['slow delivery', 'slow postal service']
例句：
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1.The company's slow mail service has been a major complaint among customers.
该公司的慢邮服务一直是顾客的主要抱怨。
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2.I ordered a slow mail package to be delivered in two weeks.
我订购了一个慢邮包裹，预计两周内送达。
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3.The sender was unaware of the delay in receiving the slow mail, which caused them great inconvenience.
发件人不知道收到慢邮邮件的延迟，这给他们带来了很大的不便。