it was very difficult to come to the mainland 的同义句

问题补充：

it was very difficult to come to the mainland 的同义句

答案：

To come to the mainland used to be very hard .

======以下答案可供参考======

供参考答案1:

Coming to the mainland was very difficult once

供参考答案2:

coming to the mainland was very difficult.

供参考答案3:

是无奈下发的：我是一个叫冰枫的男孩，前几天，我晚自习回家，被一辆大卡车撞死了，司机将我的尸体抛入了路径边的小河里，然后逃走了。你看见了这条消息后 ，请将她发给4个论坛，如果没有发，你的妈妈会在1个月后被车撞死，你的爸爸会得绝症