1. The first animals on this living sphere, the Earth, were primitive marine animals, and then around 500 million years ago these sea animals developed shells.
    在地球这个有生命的星球上，最早的动物是原始海洋动物。后来，在大约5亿年前，这些海洋动物进化成甲壳动物。

2. Nights are long in hospitals, but all through the night the young Marine sat there in the dimly-lit ward, holding the old man's hand and offering words of hope and strength.
    医院里长夜漫漫，但是年轻的海军陆战队队员整夜都坐在灯光昏暗的病房里，握着老人的手，说着充满希望与力量的话。

3. He extended his hand. The Marine wrapped his strong fingers around the old man's limp ones, squeezing a message of love and encouragement.
    他伸出手，那海军陆战队队员立刻有力地抓住了这只无力的手，紧紧握着，传达着爱与鼓励。

4. "No, he wasn't," the Marine replied. "I never saw him before in my life."
    "哦，他不是，"海军陆战队队员回答道。"我这辈子从没见过这个人。"

5. Someone at the hospital called the Red Cross office in Brooklyn, and a request for the boy to rush to Brooklyn was sent to the Red Cross director of the North Carolina Marine Corps camp.
    医院有人给布鲁克林区的红十字办公室挂了电话，向北卡罗来纳州海军陆战队营地的红十字机构的主任发出请求, 让那个年轻人赶紧回布鲁克林。

6. She started to offer words of sympathy, but the Marine interrupted her. "Who was that man?" he asked.
    她开始说些表示同情的话，但海军陆战队队员却打断了她，"那位老人是谁？"他问。

7. Marine Studio biologists have pointed out that, however
    海洋摄影室的生物学家指出, 不管海豚科动物多么聪明,

8. Marine Studio biologists have pointed out that,
    海洋摄影室的生物学家指出，

9. Occasionally, the nurse urged the Marine to rest for a while. He refused.
    护士偶尔会过来劝海军陆战队队员休息一会儿，但他都拒绝了。

10. It was dusk when the young Marine walked into the entrance lobby of Kings County Hospital.
    当年轻的海军战士走进金斯县医院的入口大厅时，天已黄昏。