| 释义 |
thir·ty
I. \ˈthər]d.]ē, ˈthə̄], ˈthəi], ]t], ]i\ adjective
Etymology: Middle English thirty, thritty, from Old English thrītig, from thrītig, n., group of 30, from thrīe, thrēo three + -tig group of 10 — more at three, eighty
: being one more than 29 in number
< thirty years >
— compare number table
II. pronoun, plural in construction
Etymology: Middle English thirty, thritty, from Old English thrītig, from thrītig, n. & adjective
: 30 countable persons or things not specified but under consideration and being enumerated
< thirty are here >
< thirty were found >
III. noun
(-es)
Etymology: Middle English thritty, from Old English thrītig, from thrītig, adjective
1. : three tens : twice 15 : five times six : six fives
2.
a. : 30 units or objects
< a total of thirty >
b. : a group or set of 30
< arranged by thirties >
3. : the numerable quantity symbolized by the arabic numerals 30
4. thirties plural
a. : the numbers 30 to 39 inclusive
< a score in the thirties >
< low grades in the thirties >
b. : the members of a series or set of successive numbers that end in 30 to 39 inclusive
< the thirties of the preceding century >
< lives in the thirties in the next block >
c. : the portion of a continuum lying between 30 and 40 on a scale of measurement or segmentation
< temperatures in the thirties tomorrow >
< a man in his thirties >
< dresses selling in the thirties >
< in the latitude of the thirties >
5. : the 30th in a set or series; especially : an article of clothing of the 30th size
< wears a thirty >
6. : something having as an essential feature 30 units or members
7.
a. : a mark or sign of completion
< “Thank you, Mr. President” the traditional thirty closing press conferences — Ethyl News >
b. : end, conclusion
< had thirty written on their earthly life — Trade Compositor >
8. : the second point scored by a side in tennis
9. : a 30 caliber machine gun — usually written .30 |