1. complicate efforts by 扰乱……的努力
But the move could complicate efforts by advanced economies to push China to allow the renminbi to appreciate.
但此举有可能扰乱发达经济体敦促中国允许人民币升值的努力T8p](KJgMe7qohtWG_0e。

2. clamp down on 取缔；整治；打击
Beijing is trying to clamp down on illegal, unsafe and polluting mining across all commodities.
中国正试图取缔非法、不安全且造成污染的各类大宗原料开采0(UABeHX+Dw2@o[t*。

3. be buttressed by 有……支持
Her ideas were carefully buttressed by a series of results showing that they had been put into practice and actually worked.
一系列结果都印证了她的观点，表明她的那些观点已经被运用到实际中去并且还十分有效|2dnpvQ3]I。

4. roll out 推出
"It's very tough to roll out a vehicle of any kind with such a significant price premium versus an incumbent, " he said.
“推出任何一种比现有车型贵很多的汽车，都将十分困难，”凯文·施说7ml=;Vxbja5。