一些更极端的断言,比如说蹲姿能预防癌症, 还有待测试.The more extreme assertions about squatting - that it prevents cancer, for example - remain untested.采取跪姿 、 蹲姿或坐姿和他们谈话.Kneel, squat, or sIt'so you're at their eye level.潜行 - 在指挥官附近队员蹲...