All this posturing makes it difficult for the two countries to make progress on other disputes, like their overlapping claims to territory and oil and gas reserves in the East China Sea, he says.

• 所有这摆姿势使它难使二个国家获得进展在其它争执, 象他们重叠要求对疆土和石油和天然气储备在东中国海, 他说。