| 单词 | tighten up |
| 释义 | tighten up tighten [sth] up vtr phrasal sep: (fasten more securely) SC 将...固定好 jiāng gù dìng hǎo The knot was coming undone, so Linda tightened it up. tighten [sth] up vtr phrasal sep: figurative (make stricter, more restricting) SC 使更严厉, 使更严格 We need to tighten up the rules, so this can never happen again. tighten up vi phrasal: (become more taut or tense) SC 绷紧 bēng jǐn SC 拉紧 bēng jǐn，lā jǐn The rope tightened up as Peter gathered in the slack. |
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