来自《耶鲁大学开放课程：美国内战与重建1845-1877 第19集 第19集》
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His brother, and probably his father,他那个兄弟 也许还有他爸爸 -
had fathered children by slave women;逼迫女奴为他们生下孩子 -
had abandoned their homes, their wives, their families.抛弃了他们的家庭和妻女 -
He came from a very, very difficult,李来自一个非常无耻 龌龊 -
sordid but aristocratic, famous Virginia family,却又著名弗吉尼亚贵族家庭 -
And he went to West Point just like his daddy,他像他的父亲一样去了西点军校 -
and he became an officer in his early twenties.在二十岁出头时就成为一名军官 -
He spent his twenties, his thirties, and his forties此后的二十多年间 -
spread all over the United States, largely as an engineer.他以工程师的身份 走遍了美国 -
He was a great engineer.他是一名伟大的工程师 -
He helped build the first bridge across the Mississippi.他协助建造第一座横跨密西西比河的桥梁 -
He helped redirect rivers in the lower Mississippi,他协助治理密西西比河下游