Theophylline, a close structural relative of caffeine and the major stimulant in tea, was one of the most effective compounds in both regards.

茶碱是咖啡因的近亲，也是茶中的主要兴奋剂，它在这两方面都是最有效的化合物之一。

youdao

In West Africa, people have long chewed kola nuts as stimulants, because they contain caffeine that also occurs naturally in tea, coffee, and chocolate.

在西非，人们长期以来都咀嚼可乐果作为兴奋剂，因为它们含有在茶、咖啡和巧克力中天然存在的咖啡因。

youdao

They traded in tea with Chinese.

他们同中国人做茶的生意。

youdao

PQQ is found in fermented soybeans and also in parsley, green tea, green peppers and kiwi fruit.

VOA: special.2009.04.21

If you are stressed, a cup of tea. If you are in shock, a cup of tea.

如果你压力很大，喝一杯茶。如果你受惊了，喝一杯茶。

来一杯红茶怎么样？ - SpeakingMax英语口语达人

Seven days a week, it's free to get in. You just have to buy a tea.

一周七天，都可以免费进入。你只需要买一杯茶就可以了。

布鲁克林的变化 - SpeakingMax英语口语达人

In Russia, tea is prepared in tea rooms using a samovar, an urn of hot water.

BBC: The world in six cups

All men, they met in tea shops and came up with a manifesto, which they photocopied and passed around the neighborhood.

NPR: PORTRAITS: New Numerology Of Hate Grows In Myanmar

What this tells the pundits (and me) is that the Republican candidate, whoever it is, will be heavily invested in Tea Party support.

FORBES: We Can All Support an IT Party