remain,still,stay,leave的区别

remain
To continue in the same state or condition:
保持不变继续保持同一种状态或情况：
These matters remain in doubt.
这些事情仍然值得怀疑
To continue to be in the same place; stay or stay behind:
留下逗留在同一地方；停留或者留下：
We are remaining at home.
我们留在家里
To be left after the removal, loss, passage, or destruction of others:
余留在其他事物移走，丢失，走开或毁坏之后仍留下来：
Only a few trees remain.
只留下了一些树
See: stay1
To be left as still to be dealt with:
尚待剩余的仍需要处理的：
A cure remains to be found.
尚待发现的疗法
To endure or persist.
持久或坚持

leave
v.tr.
To go out of or away from:
离开从…走出或远离：
not allowed to leave the room.
不准离开房间
To go without taking or removing:
留下没有拿走或移走：
left my book on the bus.
把我的书留在公共汽车上了
To omit or exclude:
舍去省略或排除：
left out the funniest part of the story.
省略了故事中最有趣的部分
To have as a result, consequence, or remainder:
成…的结果作为结果、后果或遗迹而拥有：
The car left