每个人脸上都露出愉快微笑。
她一定做了一个愉快的梦，因为她在睡梦中微笑着。
She must have had a happy dream, for she was smiling in her sleep.
无论游客到这个城市的哪个地方，他们都会在街上看到人们热情的微笑，或者在公园里听到一句愉快的“你好”问候。
Wherever tourists go in this city, they will see a warm smile on the street or hear a happy "hello" in a public park.
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