assignment assure astonish 造句

assignment:分配
eg:The assignment problem is a kind of combinatorial optimization problems.
分配问题是一个组合优化问题.
assure:保证
eg:We assure you of our best services at all times.
我方保证向贵方随时提供最佳服务.
astonish：使惊讶
eg:In the end,he discovers a secret that will astonish the world.
最后他发现了一个震惊全世界的秘密.
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