At t the expense of以……为代价
at the expense of technology减少对技术经费的投入
over at the expense of以…为代价
at the expense of children把儿童牺牲掉
At the expense of environment不惜以牺牲环境为代价
at the expense of banks削弱了银行本身的存在
found at the expense of以…为代价
at the expense of nature以自然为代价
At the expense of sb嘲笑某人