名詞 cooler:

1. a refrigerator for cooling liquids
   同義詞：ice chest
2. an iced drink especially white wine and fruit juice
3. a cell for violent prisoners
   同義詞：tank

形容詞 cool:

1. neither warm nor very cold; giving relief from heat
   同義詞：cool
2. marked by calm self-control (especially in trying circumstances); unemotional
   同義詞：cool, coolheaded, nerveless
3. (color) inducing the impression of coolness; used especially of greens and blues and violets
   同義詞：cool
4. psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike
   同義詞：cool
5. (used of a number or sum) without exaggeration or qualification
   同義詞：cool
6. fashionable and attractive at the time; often skilled or socially adept
   同義詞：cool

1. Not really. Last year it was much cooler. You're not from around here, then?
   不全是。去年這時(shí)候更涼快些。看來(lái)你不住在附近，是嗎？
2. The climate of england is not so mild as that of Japan, but in summer it is much cooler.
   英格蘭的氣候不象日本那樣溫和，但是在夏天更涼爽。
3. It is hard to sleep without a cooler in this room.
   沒有空氣調(diào)節(jié)器，在這間屋里很難入睡。
4. Metals contract as they get cooler.
   金屬遇冷則收縮。

cool.er

n.（名詞）
A device, container, or room that cools or keeps cool.
冷卻裝置：使…冷卻或使…保持冷卻的裝置、容器或房間
A cold drink, often a mixture of white wine and juice.
一種冷飲品，常為白葡萄酒和果汁的混合物
Slang A jail.
【俚語(yǔ)】 監(jiān)獄