Once they reach their destination and lower their ropes, there's no turning back.

到目的地后放下绳索，就再也不能回头了。

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Parents and children can belong to different ones. There's no turbulent sea or gaping void turning back explorers.

父母与孩子可以分别是这两个群体中的人，两个群体之间没有什么波涛汹涌，也没有不可跨越的鸿沟以至于让探险者只得折返。

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"Will and Jada are finished, " says another insider. "They're still keeping up appearances because they worry divorce could hurt their careers, but there's no turning back now.

涰“威尔和杰达结束了，”另一个知情人说：“他们还假装在一起是因为他们担心离婚会伤害到他们各自的事业，但是现在已经无法挽回了。

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And both major German political parties - Mrs Merkel's Christian Democrats and the Social Democrats led by Foreign Minister Frank-Walter Steinmeier - make clear there is no turning back from a close embrace of Russia.

BBC: Russia strengthens ties with Germany