Our respiratory system ? lungs and associated passageways ? snags the oxygen from the air , passes it along to the transporters in our bloodstream , drags the carbon dioxide ( one of the byproducts of cell life ) back out of the blood and expels it out into the air 呼吸系统? ?肺、以及相联的各个通道? ?从空气中吸入氧气，通过循环系统把他们输送到血液里，把二氧化碳（细胞的副产品）从血液里呼吸出去，排放到空气。
I d see him standing my watch on top of his n , stead of calling me , so i could go on sleeping ; and see him how glad he was when i come back out of the fog ; and when i come to him again in the swamp , up there where the feud was ; and such - like times ; and would always call me honey , and pet me and do everything he could think of for me , and how good he always was ; and at last i struck the time i saved him by telling the men we had small - pox aboard , and he was so grateful , and said i was the best friend old jim ever had in the world , and the only one he s got now ; and then i happened to look around and see that paper 我看到他才值完了班便替我值班，不愿意前来叫我，好让我继续睡大觉。我看到，当我从一片浓雾中回来，当我在世仇械斗那儿，在泥塘里又见到了他，在所有这类的时刻里，他是多么兴高采烈，总要叫我乖乖，总要宠我，总要想尽一切方法为我设身处地设想，他对我始终如一这么好啊。最后我又想起了那一回的事：我对划拢来的人们说，我们木筏子上有害天花的，从而搭救了他，这时他是多么地感激，说我是老杰姆在这个世上最好的朋友，也是他如今唯一的朋友。
Children was heeling it ahead of the mob , screaming and trying to get out of the way ; and every window along the road was full of women s heads , and there was nigger boys in every tree , and bucks and wenches looking over every fence ; and as soon as the mob would get nearly to them they would break and skaddle back out of reach 每一棵树上都有黑人小孩扒在上面。还有许多黑人男男女女从栅栏里往外张望。每次只要这群暴徒逼拢来，他们便仓惶逃散，退到老远老远的去处。
But he was too deep , and too ready , and too clever for me , and by the time the two men had come back out of breath , and confessed that they had lost the track in a crowd , and been scolded like thieves , i would have gone bail for the innocence of long john silver 我留心观察着这位厨子，但是他对我来说是太有城府太有准备也太聪明了。当那两个人上气不接下气地回来承认他们在人群中失去了追踪目标时，他们像小偷般地挨了顿训斥，因此，我情愿为高个子约翰西尔弗的清白作证。
