encompass/include/involove有甚麼分別?

I have examples here but I copy from the longman dictionary.

encompass:
1to include a wide range of ideas, subjects, etc:
The study encompasses the social, political, and economic aspects of the situation.
2to completely cover or surround something:
The houses encompassed about 100 square metres.

include:
1 [not in progressive]if one thing includes another, the second thing is part of the first:
Does the price include postage?
His job includes looking after under-21 teams.
2to make someone or something part of a larger group or set [≠ exclude]:
The team is stronger now they've included Roscoe.

involve:
1 if an activity or situation involves something, that thing is part of it or a result of it:
What will the job involve?
2to include or affect someone or something:
These changes will involve everyone on the staff.
There have been four accidents involving Forest Service planes.
3 to ask or allow someone to take part in something
4 involve yourself to take part actively in a particular activity:
Reilly involves himself in every aspect of his company's business.

encompass係
(圍繞;包圍)
The enemy encompassed the city.
敵人包圍了這個城市。

(包含)係包括一切同埋好廣泛ge包含
My plan encompasses every possibility.
我的計劃包含了各種可能。

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Include係
(包括,包含)只係包括幾樣野，而唔係所有野
The price includes both house and furniture.
價錢包括房子和傢俱。

同encompasses係相反
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involve 通常係只與一d野拉上關係ge"包含"，同上面兩個有住唔同ge性質~


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Hope my information helps......^^ Good ;Luck