伤害是危害老年人群健康的一个重大的公共卫生问题。
Injury is an important public health problem which threatens the health of elderly population.
如果不及时停止机床工作，刀具可能迅速损坏并产生危害和伤害。
P99: Tool can fail rapidly and cause damage or injury if not stopped immediately.
如果不及时停止机床工作，刀具可能迅速损坏并产生危害和伤害。
P99: Tool can fail rapidly and cause damage or injury if not stopped immediately.
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