一项由美国提出、尚未确保政府会支持的倡议，远远不够，只有美国与中国结为伙伴关系，才能获得足够的规模与速度来迎接挑战。
A US initiative that is not assured of gaining government support would be insufficient, and only if the US forms a partnership with China would adequate scale and speed be attained to meet the challenge.