| 单词 | be concerned at |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔slippage〕The party leader is said to be concerned at the slippage (= loss of popularity) in the recent opinion polls.据称，该党领导人对最近民意测验中支持率的下滑感到忧心忡忡。剑桥高阶The party leader is said to be concerned at the slippage (= loss of popularity) in the recent opinion polls.据说该党的领导人对最近民意测验中失去拥护而担忧。剑桥国际 |
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