英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

caffeine    音标拼音: [kæf'in]
n. 咖啡因,茶精(兴奋剂)

咖啡因,茶精(兴奋剂)

caffeine
n 1: a bitter alkaloid found in coffee and tea that is
responsible for their stimulating effects [synonym: {caffeine},
{caffein}]

caffein \caf*fe"in\, Caffeine \Caf*fe"ine\, n. [Cf. F.
caf['e]ine. See {Coffee}.] (Chem.)
A white, bitter, crystallizable substance, found in coffee
and tea. It is identical with the alkaloid {theine} from tea
leaves, and with {guaranine} from guarana. It is responsible
for most of the stimulating effect of coffee or tea.
[1913 Webster WordNet 1.5]



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • 33 Best Things to Do in LA - U. S. News Travel
    Los Angeles has an exhaustive array of fun things to do, from the family-friendly La Brea Tar Pits and the must-visit Natural History Museum to a behind-the-scenes studio tour at
  • 30 Best Los Angeles Attractions That You Should See in 2025
    Head to one of these essential Los Angeles attractions, whether you're only here for a sightseeing visit or you're a native looking to fall back in love with L A
  • Places to Visit in Los Angeles Top 10 Things to Do
    Here are the top 10 things to do and places to visit in Los Angeles for memorable experiences Including tourist attractions, parks, museums and more
  • L. A. Bucket List: The 16 Best Attractions in Los Angeles
    From renowned museums and iconic landmarks to beachside theme parks and luxe villas, these are the top things to do in Los Angeles Exploring the shorelines, embarking on outdoor adventures, and immersing yourself in cultural experiences are excellent ways to live it up this weekend in Los Angeles
  • Top 15 Los Angeles Attractions To Visit At Least Once
    From The Huntington to the Hollywood Bowl, these Los Angeles attractions are essential stops for both tourists and locals As one of the most-visited cities in the United States, Los Angeles is a coveted international destination with some of the country’s best sightseeing





中文字典-英文字典  2005-2009