stamp·less英s'tæmples美s'tæmplesBNC²³⁶²¹³⁺¹ 基本例句 adj.无印章的¹⁰⁰ Around Thanksgiving, they start pouring in by the thousands each day as Christmas approaches. Even stampless letters get through, a rare exception for the US Postal Service. 感恩节前后，随着圣诞节的临近，每天有数千封信件涌入小镇，甚至还有一些信件没有粘贴邮票，这在美国邮政局的服务中是非常罕见的。 i21st