| 单词 | to be worried about |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔human nature〕It's only human nature to be worried about change.对变革有忧虑不过是人之常情。牛津高阶〔worried〕He has plenty to be worried about.他有很多事要操心。韦氏高阶 |

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