他们认为国际婚姻很难长久，不可靠，不稳定的翻译：They believed that the international marriage difficult to long, unreliable, unstable 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

They believe that long-term international marriage is difficult, unreliable, unstable

They believed that the international marriage difficult to long, unreliable, unstable

They thought the international marriage is very difficult for a long time, is unreliable, is unstable

They were of the view that the international marriage is very difficult to last for a long time, are not reliable and are not stable

They believed that the international marriage difficult to long, unreliable, unstable