Standard specification for motorized treadmills 装有发动机的人力踏车的标准规范
2.
The 22 - year - old man had been trapped under his motorized bicycle in the five - feet - deep well since last wednesday . he was spotted by a farmer from his tractor on monday . rescuers took two hours to free him 据美联社11月1日报道,这名22岁的男子从10月26日起一直被困在一个深达5英尺的井中,而那辆装有发动机的自行车则重重的压在他的身上。