When you first begin rappelling you may swing back and forth.
当您首次开始速降时,您可能会前后晃动.
And he had PTSD and also a fear of heights, because in Vietnam, he had been rappelling backwards out of helicopters over the skids.
他有战后创伤症候群并且他还恐高,因为在越南,他经常从直升机上反向绕绳下降。
简答网 · 中考英语
简答网 · 高考英语
简答网 · 考研英语
简答网 · 四六级英语
简答网 · 初中英语作文