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IELTS BNC: 4294 COCA: 4536
tighten verb
⇨ tighten (tighten your grip) ⇨ tighten your belt ⇨ save 2 tighten

verb

tighten ♦︎ clench ♦︎ tense ♦︎ grit your teeth ♦︎ screw your eyes/face upThese words all mean to make sth become tight or tighter. 這些詞均表示使變緊、使更加牢固。PATTERNS AND COLLOCATIONS 句型和搭配◆to tighten / clench / tense / grit your teeth / screw your eyes up with / in pain, irritation, etc.◆to tighten / clench your hand / fist / jaw◆to tighten / tense your muscles◆to clench / grit your teeth◆your jaw / hand tightens / clenches / tenses◆your fist / stomach tightens / clenches◆your muscles tighten / tense◆to tighten / clench / tense (sth) involuntarily◆to clench / grit your teeth / screw your eyes up tight / tightly■ tighten [intransitive, transitive] to become or make sth tight or tighter 使變緊；使更加牢固◆His mouth tightened into a thin line.他的嘴緊抿成一道細縫。◆This tool is for tightening screws.這個工具是用來擰緊螺絲的。◆She tightened her grip on his arm.她把他的手臂抓得更緊了。◆The brake cable needs tightening up.刹車線需要調緊。OPP relax , loosen , slacken ⇨ relax 2 ■ clench [transitive, intransitive] to press your hands, teeth or stomach muscles together tightly, usually showing that you are angry, determined or upset; (of hands, teeth or stomach muscles) to be pressed together tightly in this way （通常表示憤怒、決心或不安時）捏緊，繃緊，咬緊◆He clenched his fists in anger.他憤怒地攥緊了拳頭。◆Through clenched teeth she told him to leave.她咬牙切齒地讓他離開。◆His fists clenched slowly until his knuckles were white.他慢慢握緊拳頭，指關節都發白了。■ tense tens [intransitive, transitive] to make your muscles tight and stiff, especially because you are not relaxed （尤指因緊張）繃緊（肌肉）；（肌肉）拉緊◆She tensed, hearing the strange noise again.再次聽到那個奇怪的聲音時，她緊張起來。◆He tensed himself, listening to see if anyone had followed him.他繃緊神經，仔細聽是否有人跟蹤自己。◆Expecting a blow, she tensed every muscle in her body.她繃緊了全身肌肉，準備接受打擊。 OPP relax ⇨ relax 2   see also tense ⇨ tense adj. ■ grit your ˈteeth

idiom

(-tt-)to bite your teeth tightly together; to be determined to continue to do sth in a difficult or unpleasant situation 咬緊牙關；下定決心；鼓起勇氣◆She gritted her teeth against the pain.她咬牙忍痛。◆It started to rain harder, but we gritted our teeth and carried on.雨開始大起來，可我們鼓起勇氣繼續進行。NOTE 辨析 Grit your teeth or clench your teeth? Grit your teeth is used especially to talk about showing determination; clench your teeth is used more often to talk about keeping your mouth tightly shut in order to avoid making a noise such as shouting with anger or pain, or in order to stop your teeth from knocking together because you are cold or frightened. * grit your teeth尤用於顯示決心；clench your teeth更常指閉緊嘴巴，以避免因憤怒或痛苦而喊出聲，或避免因寒冷或害怕而牙齒打顫。■ ˌscrew your ˈeyes up■ ˌscrew your ˈface up

idiom

to tighten the muscles of your eyes or face, for example because the light is too strong, you are in pain or you don't like the taste or look of sth （因光線太強、疼痛或厭惡等）瞇起眼睛，面容扭曲◆He took a sip of the medicine and screwed up his face.他喝了一小口藥，臉扭作一團。

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