| 单词 | 过渡过程 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔prove〕In the past this process of transition has often proven difficult.过去这一过渡过程常常很艰难。柯林斯高阶〔prove〕This process of transition has often proved difficult.这一过渡过程常常很艰难。外研社新世纪 |
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