考虑到美国在中国购买美国国债方面获取的重大利益，我们很难理解美国政府和国会为何总是对中美双边经常账户赤字大肆抱怨。
Given that America benefits mightily from China’s purchases of US government securities, it is difficult to understand why the US government and Congress have been complaining so much about the bilateral current-account deficit.