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1·When we meet for the first time, we say how-do-you-do.

当我们初次见面时，我们会说“你好”。youdao

2·He politely said how-do-you-do to the guests.

他礼貌地对客人说“你好”。youdao

3·In formal situations, people often greet with how-do-you-do.

在正式场合，人们常以“你好”打招呼。youdao

4·The kids are learning to say how-do-you-do to new friends.

孩子们学着对新朋友说“你好”。youdao

5·She smiled and said how-do-you-do to the neighbor.

她微笑着跟邻居说“你好”。youdao

6·Grandpa always warmly says how-do-you-do to visitors.

爷爷总是热情地对访客说“你好”。youdao

7·At the beginning of the business meeting, people say how-do-you-do to each other.

商务会议开始时，大家会互相说“你好”。youdao

8·The teacher teaches students to greet others with how-do-you-do.

老师教学生用“你好”来问候别人。youdao

9·They said how-do-you-do as soon as they met at the party.

他们在聚会上一见面就说“你好”。youdao

10·The waiter politely said how-do-you-do to the customers.

服务员礼貌地对顾客说“你好”。youdao