连理分枝用英语怎么写

The branch of the link

理───reason;分枝───branch

For some reason, the curtains were shut.───不知什么原因，窗帘拉着。

The reason for the flood was that heavy rain.───水灾是那场大雨造成的.

Their reason for doing it is still a puzzle to me.───他们为什么干那件事仍然让我费解.

Providing that you exercise due care, there is no reason why you shouldn't live to a great age.───只要你适当地注意, 你就可享有很高的寿命.

a bona fide reason───真正原因

I had a bad night; I went to bed early enough, but for some reason I couldn't get off to sleep.───我夜里睡得很不好, 上床相当早, 可是不知为什么睡不着.

I'd like to know the reason why you're so late.───我想知道你为什么迟到那么长时间。

I really don't see any reason for changing it.───我真的不明白为什么要改变它。