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。去年這時候更涼快些?？磥砟悴蛔≡诟浇?，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】 監(jiān)獄