一根大芹菜茎只含有10千卡热量，同时用营养物质滋润你的身体健康。

One large celery stalk contains only 10 kcal, while nourishing your body with healthy nutrients. [/en]

youdao

A kilocalorie, and this is really what we--when people talk about calories, how many calories in food, it's really kilocalories that they're referring to, but that would be the energy required to raise a kilogram of water one degree centigrade.

一千卡,是人们讨论卡路时是真正用的单位,当提起食物中的热量,人们指的是多少千卡,一千卡,是将一千克水提升1℃所需要的热量

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选