Its duration may be evanescent (measured in seconds) or persistent over many hours or days.
Its duration may be evanescent (measured in seconds) or persistent over many hours or days.
疼痛时间可以是瞬间(以秒计)的，也可持续数小时或数天。
Its duration may be evanescent (measured in seconds) or persistent over many hours or days.
疼痛时间可以是瞬间(以秒计)的，也可持续数小时或数天。