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背部和背部支架
1、back my back───背对着我
2、front and back───[体]双打中一前一后的站法
3、back to back───背靠背;连续,紧接;背靠背; 背对背
4、stand back───退后;往后站;不介入;靠后站,避开
5、back───v.(使)后退,DaoTui;支持;下赌注;赞成;增援;伴奏;附带收录进……;逆时针转向;收帆;背对着;在……背后加固;位于……的后面;adv.向后地;向后仰地;在背面;有距离地;忍住地;回原处;以前地;在前面地;回报;落后地;恢复正常;再度流行;;n.背部;脊梁骨;后部;背面;末尾;(椅子)靠背;后卫;船体;(飞机)机身;(人的)躯干;;n.(Back)(美)巴克(人名);adj.后面的;背后的;过去的;拖欠的;舌后的
6、back and back───背靠背
7、back back───后退
8、back and fill───adv.出尔反尔,前进时帆忽张忽缩;adv.出尔反尔;前进时帆忽张忽缩
9、stand back to back───背靠背站着
1、The lumbar curve in the lower back, which helps us maintain our balance as we stand and walk, also leaves us vulnerable to lower back pain and strain.───腰部脊椎帮助我们在站立和行走的时候保持平衡,当同时也使得我们的背部更易疼痛。
2、As you stand, maintain the natural curve in your lower back and keep your core muscles tight. Use your leg muscles - not your back - to lift the object.───在你站起来的时候,继续保持腰背部的自然曲线,保持收紧你的核心肌肉。用你的腿部肌肉——不是背部——去抬起物品。
3、Stand up and place your hands on your lower back, as if you were sliding them into your back pockets.───站起来,把手放在腰部,感觉就像你要把手放进后面的裤袋里。