It could not be happening because this sort of thing did not happen. Any contradictory evidence could be safely ignored.
?? 名句詞匯解析
從本句名言中提取的重要詞匯，幫助你深度理解這句話
n. 事件;意外發生的事;
v. 發生(happen的現在分詞);碰巧;
?? hap(luck)+pen+ing(形容詞后綴)→事件
"The child at the back craned forward to see what was happening."
后面的孩子探出頭看看出了什么事.
近義：imminence, approach, incident, instance, arrival, occasion
conj. 因為;
?? cause, cuse 表原因,目的;司法程序,訴訟
"He was arrested because of his political affiliation."
他因所屬政黨的關系而被捕。
近義：since, whereas, for, forasmuchas
n. 分類，類別;品質，本性;方法;一群;
vt.& vi. 分類;整頓，整理;適合;
vt. 挑選;把…分類;將…排順序;
vi. 分類;交往;協調;
?? sort(kind)→種類；分類；整理；揀選
"You can't see in this light, but my new coat is a sort of brownish colour."
這種光線下你看不清楚，其實我的新外衣帶棕色。
近義：arrange, order, organise, organize, pigeonhole, range
反義：jumble, mess, muss, shuffle, tousle, upset
vi. 發生;碰巧;出現;偶然遇到;
?? hap(luck)+pen(動詞后綴)→發生；偶然發生；碰巧
"It's frightening to think it could happen again."
想到此事可能再次發生就使人不寒而栗。
近義：arise, issue, occur, pass, supervene, transpire
n. 證詞;證據;跡象;明顯;
vt. 使明顯;顯示;表明;證實;
?? e出+vid看+ence表名詞→明顯的證據→證據，證人
"You'd better give us as much factual evidence as possible."
你最好向我們盡可能多地提供事實證據.
近義：manifest, bare, show, state, represent, debunk
n. 事件，形勢;東西，事物;家伙;事業;
"She was the only thing that made life bearable."
只因有了她生活才可以過得下去。
近義：item, knickknack, article, object, tchotchke, thingamabob