youdao

Based on your past experience you know the water will be cool and refreshing, and playing in the waves will be fun, so you decide to go for a swim.

据以往的经验你知道水将变凉而且使你精神振作，在水里玩玩肯定很有意思，所以你决定去游泳。

youdao

Ice cream is fun stuff — so cool, so smooth, so creamy!

冰淇淋真是个有趣的东西——冰凉爽滑、奶味十足！

youdao

So it's fun. Everybody's drinking and it's cool.

很有意思。在那里喝两杯感觉很好。

充满乐趣 - SpeakingMax英语口语达人

Or perhaps it's the other way around: The Audi A6 driver may feel so cool--and may be having so much fun--that he doesn't mind if things aren't perfect.

FORBES: Magazine Article

"We see them as super-cool because they look like they're having so much fun, " Meissnitzer said.

WSJ: Skiing: Is America the New Austria? Lindsey Vonn,