| 单词 | 把背挺直 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔back〕Keep your head up and your back straight.抬头，把背挺直。朗文当代〔keep〕Keep your back straight.把背挺直。外研社新世纪〔straight〕Always lift with a straight back.每次举起的时候都要把背挺直。朗文当代〔straight〕Keep your back straight.把背挺直。韦氏高阶〔straight〕Make sure you keep your back straight.你一定要把背挺直。麦克米伦高阶 |
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