20190411每日一词U-turn

1）翻译下面的句子：

他的观点发生了 180° 大转弯，决定和前妻复婚。

（参考翻译：He has made a U-turn and decided to remarry his divorced wife. 或 He has made a U-turn, deciding to remarry his ex-wife.）

2) Being threatened is the reason why  he made a U-turn to betray us.