How to Sort Letters　　First of all, letters and packets are collected in bags from pillar boxes, post offices and firms, in post office vans. They are then taken to the sorting office, where the bags are emptied and the letters separated from the packets. Following this step, the letters are put through machines so that the stamps can be cancelled . In this process the date and place of sorting are put over the stamps on each envelop. In the next stage, the sorting of the letters takes place, according to the　　country they are addressed to. This is done by placing them in the appropriate pigeon hole . Sebsequently, the letters are taken from the pigeon hole and placed in baskets,which are then put onto a conveyor belt. While on this conveyor belt, the baskets are directed to the appropriate secondary sorting section by means of coding pegs. At the secondary sorting frames, the letters are put into towns in the country Later, the letters are tied in bundles and a label is put on showing the towns they are addressed to. Finally, the letter bundles are placed in bags, which have the post office seal,post office railway number and destination code number on them, and then these are sent to the railway station.　　這是一篇典型的描述過程的文章。文章從頭到尾用了許多順序轉接詞，清楚、連貫地描述了信件分類的過程。　　如何進行信件分類　　首先，郵局的郵車從郵筒、郵局或公司把信件和包裹用袋子收集起來，然后送到分類室。在這里，袋子倒空，信和郵包給分開。接下來，將信放在機器里蓋銷郵票。這個過程中，分類的時間和地點就印在郵票上了。下一步，根據信所寄往的國家進行分類，放入鴿籠式分類架。隨后，信件被取出，放進籃子里，送上傳送帶。上了傳送帶后，籃子根據標碼釘被送往再次分類部。在這些再次分類框架上，信按照這個國家的各個城市被分開。再下來，信件被扎成捆，貼上要寄往城市的標簽。最后，信件捆被裝進袋子，袋子上蓋有郵戳，標上郵局鐵路號碼和目的地的郵政編碼，然后送往火車站。

　　How to Sort Letters　　First of all, letters and packets are collected in bags from pillar boxes, post offices and firms, in post office vans. They are then taken to the sorting office, where the bags are emptied and the letters separated from the packets. Following this step, the letters are put through machines so that the stamps can be cancelled . In this process the date and place of sorting are put over the stamps on each envelop. In the next stage, the sorting of the letters takes place, according to the　　country they are addressed to. This is done by placing them in the appropriate pigeon hole . Sebsequently, the letters are taken from the pigeon hole and placed in baskets,which are then put onto a conveyor belt. While on this conveyor belt, the baskets are directed to the appropriate secondary sorting section by means of coding pegs. At the secondary sorting frames, the letters are put into towns in the country Later, the letters are tied in bundles and a label is put on showing the towns they are addressed to. Finally, the letter bundles are placed in bags, which have the post office seal,post office railway number and destination code number on them, and then these are sent to the railway station.　　這是一篇典型的描述過程的文章。文章從頭到尾用了許多順序轉接詞，清楚、連貫地描述了信件分類的過程。　　如何進行信件分類　　首先，郵局的郵車從郵筒、郵局或公司把信件和包裹用袋子收集起來，然后送到分類室。在這里，袋子倒空，信和郵包給分開。接下來，將信放在機器里蓋銷郵票。這個過程中，分類的時間和地點就印在郵票上了。下一步，根據信所寄往的國家進行分類，放入鴿籠式分類架。隨后，信件被取出，放進籃子里，送上傳送帶。上了傳送帶后，籃子根據標碼釘被送往再次分類部。在這些再次分類框架上，信按照這個國家的各個城市被分開。再下來，信件被扎成捆，貼上要寄往城市的標簽。最后，信件捆被裝進袋子，袋子上蓋有郵戳，標上郵局鐵路號碼和目的地的郵政編碼，然后送往火車站。