i think the increasing population is one of the greatest c_________today2his word i_________ themselves or my money

问题描述:

i think the increasing population is one of the greatest c_________today
2his word i_________ themselves or my money

campaigns

challenge挑战

1 challenge /conundrum 最大的挑战/难题
2 insult 他的话侮辱了他们自己或者我的钱

1. crises 危机
2. indicates 表明