Question

reservoir 【reservoir】n.水库This reservoir is large enough to supply water to the entire city.这水库大得足够供给全市的用水。

Accepted Answer

['rezərvwɑːr] 
reservoirlake used to store water for community use
The word reservoir refers to a place where large amounts of water get stored.  It can also be used to describe great amounts of other things, such as when you refer to a trivia expert as a reservoir of useless knowledge.
The word reservoir comes from the French réservoir, which further derives from the Old French reserver, meaning "to reserve." Knowing this, it makes sense that the meaning evolved into a place, either man-made or natural, where water is stored or "reserved," usually for distribution for drinking, irrigating, and generating power. Remembering the related word reserve might also help in both the spelling and pronunciation of the word, as reserve is spelled (and pronounced) with "er," the same as "reservoir."
All forms of 'reservoir' will appear on average once every 1151 pages.reservoir

Front	reservoir
Pron	['rezərvwɑːr]
Back	【reservoir】 n.水库 This reservoir is large enough to supply water to the entire city. 这水库大得足够供给全市的用水。
Vocab	reservoirlake used to store water for community use The word reservoir refers to a place where large amounts of water get stored. It can also be used to describe great amounts of other things, such as when you refer to a trivia expert as a reservoir of useless knowledge. The word reservoir comes from the French réservoir, which further derives from the Old French reserver, meaning "to reserve." Knowing this, it makes sense that the meaning evolved into a place, either man-made or natural, where water is stored or "reserved," usually for distribution for drinking, irrigating, and generating power. Remembering the related word reserve might also help in both the spelling and pronunciation of the word, as reserve is spelled (and pronounced) with "er," the same as "reservoir." All forms of 'reservoir' will appear on average once every 1151 pages. reservoir

Reservoir Water Word Large Amounts French Meaning Reserve