It could not be happening because this sort of thing did not happen. Any contradictory evidence could be safely ignored.
📚 名句词汇解析
从本句名言中提取的重要词汇，帮助你深度理解这句话
n. 事件;意外发生的事;
v. 发生(happen的现在分词);碰巧;
💡 hap(luck)+pen+ing(形容词后缀)→事件
"The child at the back craned forward to see what was happening."
后面的孩子探出头看看出了什么事.
近义：imminence, approach, incident, instance, arrival, occasion
conj. 因为;
💡 cause, cuse 表原因,目的;司法程序,诉讼
"He was arrested because of his political affiliation."
他因所属政党的关系而被捕。
近义：since, whereas, for, forasmuchas
n. 分类，类别;品质，本性;方法;一群;
vt.& vi. 分类;整顿，整理;适合;
vt. 挑选;把…分类;将…排顺序;
vi. 分类;交往;协调;
💡 sort(kind)→种类；分类；整理；拣选
"You can't see in this light, but my new coat is a sort of brownish colour."
这种光线下你看不清楚，其实我的新外衣带棕色。
近义：arrange, order, organise, organize, pigeonhole, range
反义：jumble, mess, muss, shuffle, tousle, upset
vi. 发生;碰巧;出现;偶然遇到;
💡 hap(luck)+pen(动词后缀)→发生；偶然发生；碰巧
"It's frightening to think it could happen again."
想到此事可能再次发生就使人不寒而栗。
近义：arise, issue, occur, pass, supervene, transpire
n. 证词;证据;迹象;明显;
vt. 使明显;显示;表明;证实;
💡 e出+vid看+ence表名词→明显的证据→证据，证人
"You'd better give us as much factual evidence as possible."
你最好向我们尽可能多地提供事实证据.
近义：manifest, bare, show, state, represent, debunk
n. 事件，形势;东西，事物;家伙;事业;
"She was the only thing that made life bearable."
只因有了她生活才可以过得下去。
近义：item, knickknack, article, object, tchotchke, thingamabob