Wearing heels also creates the threat of getting a heel caught in a sidewalk crack or a sewer-grate and being thrown to the ground—possibly breaking a nose, back, or neck.
穿着高跟鞋也会造成鞋跟被人行道裂缝或阴沟栅卡住以及摔倒在地上的危险，穿鞋的人有可能会摔断鼻子、背部或脖子。
The ground area was also checked with dye-penetrant to ensure that no crack tip remained.
打磨区也用着色渗透剂进行了检查，以便确保无裂纹尖端留存。
This essay analyzes what causes the crack and calculates according to the elastic ground frame work.
对裂缝的原因进行分析并按弹性地基框架进行计算。
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