...位置击右键,选择“Propreties”,定义Name、Attributes,(4)为实体建立关系 关系类型:一对一(One-One) 一对多(One-Mary) 多对一(Mary-One) 多对多(Mary-Mary)…(5)定义基数、定义强制关系 注意“强制性”与“可选性”的选择。
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One day Mary 玛丽的一天
When Mary starts talking, no one else can get a word in edgeways.
玛丽讲起话来,别人谁也插不上嘴。
"This is the first one," said Mary, seating herself on the big stool.
“这是第一件事。”玛丽说,坐在了大凳子上。
Colin was at its head with Dickon on one side and Mary on the other.
科林领头,狄肯在一边,玛丽在另一边。
In eighteen twenty-one, Mary Lyon went to another private school where she was taught by Reverend Joseph Emerson.
VOA: special.2010.06.27
Mary began her first teaching job at a one-room local school teaching children for the summer.
VOA: special.2010.06.27
In eighteen sixty-eight, one of Mary Cassatt's paintings was accepted into the Paris Salon.
VOA: special.2009.07.12
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