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- Tonifies kidneys, and improve yangxu (yang deficient), strengthen muscles; for impotence, lower back and knee pain, cold chest and abdomen, urinary incontinence due to kidney deficient. 温肾阳，壮筋骨。阳萎精冷，遗尿崩漏，心腹冷痛，腰脚冷痹，痈疽火毒。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- He rocked back and forth in his rocking chair. 他坐在摇椅里前后摇晃着。
- He fluttered back and forth in the corridor. 他在走廊上烦躁不安地走来走去。
- He lay on his back and looked up at the sky. 他仰卧著观看天空。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- She came back and slipped on a new sweater. 她回来换了件新羊毛衫。
- She took a seat in the back and watched. 她在后排找了一个座位坐下看起来。
- This herb is used for pain in the joints or bones and in the treatment of rheumatoid arthritis or a cold sensation and pain in the back and knees. 该草本用于关节或骨头的疼痛,并治疗风湿性关节炎、感冒症状及脊背膝盖的疼痛。
- I like to sit back and rest in the evenings. 我喜欢在晚上什麽也不做，好好休息。
- Heating up. Heat up your arms and legs, waist and back and the important parts, your ankles and knees, which is easy to injure in exercise. 准备活动。将四肢、胸、背、腹、腰、踝等部位充分活动开，方法是做操或小步慢跑。由于跑步对膝关节压力较大，因此要加强脚腕和膝关节的热身。
- He leaned back and crossed his knees[legs]. 他仰起身子，翘起了二郎腿。
- I'll pop back and tell you the results. 我会赶回来告诉你结果的。
- I'm obliged to keep them back and belly. 我有义务供给他们吃穿。
- The branch sprang back and hit me in the face. 树枝弹回来打在我脸上。
- Elbow pads and knee pads are essential on a skateboard. 滑滑板时带护肘和护膝是必要的。
- The branch whipped back and hit me in the face. 那树枝突然弹回打在我的脸上。
- Scratch my back and I'll scratch yours. [谚]你帮我，我帮你。
- You push from the back and I'll pull at the front. 你在後面推，我在前面拉。
- She slid the bolt back and opened the door. 她推开门闩,把门打开。
