| 单词 | 到本周为止 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔tighten up〕Until this week, every attempt to tighten up the law had failed.到本周为止, 一切旨在严格执法的努力都失败了。外研社新世纪〔tightening〕Until this week, every attempt to tighten up the law had failed.到本周为止，一切旨在严格执法的努力都失败了。柯林斯高阶 |
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