leave of absence是什么意思

He took advantage of the young man's leave of absence to sho .I want to_____ a two-day leave of absence． A)ask for B)ask absence的sence是什么意思? absence of evidence is not evidence of absence Absence of proof is not proof of absence. in the absence of 造句 英语翻译riding the 只说这个短语是什么意思就行了.这是上下文：The absence of positive be in absence of有没有the in the absence of 怎么用 The total absence of light 翻译? in absence of 和 in the absence of 有什么区别麻烦告诉我 in absence of 和 in the absence of 有什么区别