怪物猎人x助手:in future和in the future

牛津的解释：
in future (BrE) (AmE in the future) from now on:今后、从今以后之意 (此处in future为英国英语， in the future为美国英语。
例：1）Please be more careful in future. 今后小心
点。
2） In future, make sure the door is never left unlocked.今后一定要注意把门锁上。

in the future:the time that will come after the present or the events that will happen then:在将来、未来
例：No one can foresee what will happen in the future.没人能预见将来会发生什么事。

in future带有指令.命令的语气
如"

‘In future, I hope that you will arrive in time for meetings.’

‘I'm sure that in future, you will think before you start complaining about things.’

in the future表示在将来
如
In the future, there will be flying cars around Beijing.’

‘We can look forward to everyone owning a flat screen TV in the future.’

简单的说就是:
in future =from now on 从今以后
in the future 未来

in the future表示在将来
in future表示from now on 从现在开始
in the future表示在将来
in future表示from now on 从现在开始

in the future表示在将来
in future表示from now on 从现在开始

in the future 将来,未来
in future 今后, 往后

in future表将来~固定短语。
in the future~~~~~~~~~~~~~~~~~~~~~~~~~