take place against什么意思The riots took place against a background of widespread unemployment.然后还想问下,“take place against”中的“against”是什么意思?为什么这样用?

take place against什么意思The riots took place against a background of widespread unemployment.然后还想问下,“take place against”中的“against”是什么意思?为什么这样用? take against take place,take one’s place,take the place of三个短语有什么区别?各举一例 The election take place against a background of widespread unemployment 里的against 是什么词性 ying里的against 是什么词性怎么翻译 take place take place take ones place后面跟什么 take place 和 hold 有什么区别? take place in our life什么意思 take place后面接什么介词 place a complait against是什么意思 when will the EXPO 2010 take place中的take place等于什么 take place加in或on时用什么区别take place的用法 take place 后面是加什么介词?如果是take place ） school，应该是什么介词 take place,take off,take away,take take place与happen有什么区别?还有be held instead of 和take the place of 有什么不同? take place,happen有什么区别懂英语的进来