Bend the front knee, keeping the back leg straight, press the right heel down on the floor.
前腿膝关节弯曲，后腿保持绷直状态，右脚后跟贴紧地面并向下压。
Lunge: the basic attack in fencing where a fencer closes the distance between foes by moving the front leg forward while the back leg remains stationary and straightens out.
跨步刺：击剑的基本进攻方法，即剑手移动前脚而后脚保持原位，向靠近的对手进行直刺。
Methods HLA-B27 detection was made in 328 patients with AS, 1113 patients with waist-back-leg ache and 40 healthy individuals.
方法：应用流式细胞仪法对328例AS患者1、113例腰背腿疼患者和40例健康体检人员进行了HLA-B27抗原检测。
Methods HLA-B27 detection was made in 328 patients with AS, 1113 patients with waist-back-leg ache and 40 healthy individuals.
方法：应用流式细胞仪法对328例AS患者1、113例腰背腿疼患者和40例健康体检人员进行了HLA-B27抗原检测。
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