Hands were raised up one by one.

一只只手举了起来。

youdao

He blew on his hands to warm them up.

他哈气暖手。

《柯林斯英汉双解大词典》

After two days' exertions, it's the arms and hands that seize up, not the legs.

两天的劳累之后，突然发僵的是胳膊和手，并不是双腿。

《柯林斯英汉双解大词典》

And if you're our zero just continue standing there awkwardly, Alright. So with that said, we have a three-letter word so we'll have three rounds of hands going up or down.

如果你代表0，就站在那里别动，好，那么，我们有三个字母的单词,因此我们分三次分别表达这三个字母。

哈佛公开课 - 计算机科学课程节选

Science can be hands-on, you might be down at the lake picking up algae and studying them or something, that would be hands-on.

科学研究也是要动手的,你可能会到湖底,收集水藻并研究它们,这就是动手操作

耶鲁公开课 - 生物医学工程探索课程节选

Corn on the cob is a hands-up favorite.

NPR: Summer Food: Blueberries, Texas Caviar, Tomatoes

Expect the camera to hit stores later this month in black and white -- you, dear reader, can thumb through our hands-on gallery for an up-close look today, though.

ENGADGET

On the subject of brave investors - hands up who put money into the Athens market.

BBC: Equity markets stay strong despite economic uncertainty