tab
noun [ C ] uk/tæb/ us/tæb/
(SMALL OBJECT)
标签，标牌
a small piece of paper, metal, etc. that is attached to something larger and is used for giving information, fastening, opening, etc.
Make a file folder for these documents and write "finance" on the tab. 把这些文件归档，在标签上写明“财务”字样。
Insert Tab A into Slot A and glue, before standing the model upright. 把标签 A 插入槽 A 粘好，然后把模型立起来。
US（易拉罐的）拉环
the small piece of metal, often joined to a ring, that is pulled off or pushed into the top of a can (= metal drink container) to open it
We pulled the tabs on the beer, and toasted the gods of travel.
The tabs from soda cans often end up as litter.
See also: pull-tabring pull
Northern English香烟
a cigarette
informal (also tab of acid)含迷幻药的小纸片
a small piece of paper containing the drug LSD
(COMPUTER)
（计算机屏幕或网站上的）标签
a small symbol on a computer screen or website that allows you to open different documents or pages
Move between pages by clicking on the tabs at the top of the screen. 点击屏幕上方的标签转换页面。
（文字行上的）定位栏
a fixed position on a line of text that can be reached by pressing the tab key on a keyboard
(BILL)
the tabinformal （待付的）账单，账款
the total money charged in a restaurant or hotel for food, drinks, etc.
He kindly offered to pick up the tab (= pay). 他客气地主动要求付账。
Idiom
keep tabs on something/someoneidiom 密切注意…的动态
to watch something or someone carefully
I like to keep tabs on my bank account so that I don't spend too much. 我喜欢留意我的银行户头，以防开支过大。