4. These days , they bicker almost like a couple whose long marriage is in danger of unravelling . 这些天来,美国和欧洲之前的争吵,就像一对结婚很久的夫妻陷入闹离婚的危机。
5. The opposition fighters, too, are aware that a cycle of retribution will serve nobody and risks unravelling their hard-fought gains. 连反对派的士兵也明白复仇的恶性循环无益于任何人,而且还会使他们的利益受到威胁。