A spoiling Chinese investment, restrictive competition rules, Rio's debt burden and nervous regulators would make this difficult, though not impossible.

虽然此项并购不无可能，但有意败兴的中国注资(不过中铝已宣布力拓已撕毁合同)、限制性竞争规则、力拓的债务负担及神经质的监管机构均使收购举步维艰。