【词汇讲解】
1.conviction n. 定罪，信服，坚信
如：I speak in the full conviction that I will win.
我深信我会赢。
They have no previous convictions.
他们没有前科。
2.vigilance n. 警戒，警惕
如：You cannot afford to relax your vigilance for a moment.
警惕性是万万不可放松的。
In spite of vigilance a polar bear escape from the zoo.
尽管警戒很严，北极熊还是逃出了动物园。
3.push away 推开，排除
如：Push away men, we'll soon move this rock.
伙计们！继续推，石头马上就要动了。
4.negativism n. 否定论，消极论，反对癖性