ÇϳªÀÇ ÀÏÀÌ ¸ðµç ¸é¿¡¼ ºÎÁ¤ÀûÀÎ °æ¿ì´Â °ÅÀÇ ¾ø½À´Ï´Ù.
It is very rare or almost impossible that an event can be negative from all points of view.
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