| 词汇 | tighten |
| 释义 | tighten 5 ENTRIES FOUND: tighten (verb) belt-tightening (noun) belt (noun) noose (noun) screw (noun) tighten /ˈtaɪtn̩/ verb tightens; tightened; tightening tighten /ˈtaɪtn̩/ verb tightens; tightened; tightening Learner's definition of TIGHTEN : to make (something) tight or tighter or to become tight or tighter使变紧；使绷紧；变得（更）紧 [+ object] I'll tighten the screw.我会把螺丝拧紧。 She tightened her hold on the handle.她把把手抓得更紧了。 [no object] His jaw muscles tightened.他下巴的肌肉变紧了。 tighten the noose — see noose tighten the screws — see 1screw tighten up [phrasal verb] tighten up or tighten (something) up or tighten up (something) : to become more strict or effective or to make (something) more strict or effective（使）变得更严格，变得更有效 Security around the building has tightened up recently.最近，大楼周围的安全措施加强了。 They tightened up security around the building.他们加强了大楼周围的安全措施。 We installed new machines to tighten up the assembly line.我们安装了新机器以提高装配线的工效。 tighten your belt — see 1belt |
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