Watermelon and sweet cool, where hot thirsty, cardiothoracic Fanre, may be appropriate to eat watermelon to Jieshu heat;

西瓜西瓜性味甘凉，凡暑热口渴、心胸烦热，可适当吃些西瓜以解暑清热；

youdao

The cool, sweet milk is just what you need in the tropical heat.

清凉的甜牛奶正是你在湿热的高温中所需要的。

《柯林斯英汉双解大词典》

It's cool and warm and sweet all at the same time.

它同时又清爽又温暖又香甜。

youdao

Anchored by the diminutive yet deeply flavorful birds, it is a light winter dish that speaks to Mr. Schwartz's love of contrasts: The quail is hot and sweet, the greens are cool, the pear slices are tender and the almonds add crunch.

WSJ: Michael Schwartz's Maple-Glazed Quail With Pear and Almond Salad | Slow Food Fast

If you've always found Tiki drinks too sweet, you might find these cocktails made with more cool-season spirits to be just what you've been looking for.

WSJ: Tiki's Next Wave | Half Full

Yelling at people from the lifts: rude when people fall, but a good thing when they do something cool (like recover from a near fall, or do a sweet trick).

FORBES: What Are Cultural Faux Pas When Skiing Or Snowboarding?