柯林斯詞典surface mail 1. N-UNCOUNT Surface mail is the system of sending letters and packages by road, rail, or sea, not by air. 平郵 Goods may be sent by surface mail or airmail. 貨物可通過平郵或空運發(fā)送。 返回 surface mail劍橋詞典a way of sending letters , parcels , etc. by road , sea , or train and not by aircraft , or things sent in this way 平郵，平信，普通郵件 I sent the parcel by surface mail . 我用平郵把包裹寄了出去。 返回 surface mail