at half the cost以半价
at t the cost of以……为代价;以;以…为代价
at the cost of为代价;丧失;牺牲
At The Lowest Cost以最低成本
life at the cost以生命为代价
At the cost of sb某人承担代价
at the cost ecological balance以生态平衡为代价
At the Cost of Pain心痛的花费;关于以痛苦为代价的大学英语作文
at the cost of environment以环境污染为代价;以环境为代价