建立关税壁垒以抵制舶来品: raise tariff barriers against foreign goods
放宽: relax restrictions; relax 短语和例子放宽期限 extend a time limit; 放宽条件 soften the terms; 放宽尺度 relax the requirements; 放宽?限? relaxation of restrictions; 放宽移民限制 relax restriction on immigration; 放宽经济