twentieth

• 序数词，表示在序列中排在第20位或与数字20相关的位置或时期。

An adjective referring to the number 20 in a sequence; relating to the position or period of the number 20.

1. Ordinal numberA2formal

   Coming next after the nineteenth in a sequence or position.

   第二十

   • She finished in twentieth place in the race.
   • The twentieth chapter of the book is the most exciting.
   • He celebrated his twentieth birthday last week.

• 名词，表示在计数序列中排在第20位的事物或人。也可以指二十分之一。

A noun referring to the position or rank that is number 20 in a countable sequence of items.

1. Position 20 in a seriesA2formal

   The element or item that occupies the number 20 position in a sequential order.

   第二十

   • He was the twentieth to cross the finish line.
   • The twentieth chapter of the book is the most exciting.
   • She celebrated her twentieth birthday with a big party.

• 基数词，表示二十个事物、人或计数单位；也用于构成二十进制的基础；可用作数词、名词、限定词或代词。

The cardinal numeral representing the quantity of twenty units; the twentieth positive integer following nineteen; a composite number (2²×5); the base of the vigesimal numeral system historically used in various cultures. Also functions as a noun (denoting the symbol, quantity, or group of twenty), adjective/determiner (modifying nouns to indicate quantity), and pronoun (standing in for a plural noun phrase).

1. Cardinal numeral: the number 20A1formal

   Used to denote a quantity of twenty persons or things; the twentieth positive integer in the sequence of natural numbers; a composite number (2²×5); represents a twentyfold quantity in counting, mathematics, and everyday usage.

   基数词：数字20

   • There are twenty questions on the exam.
   • She scored twenty points in the basketball game.
   • Twenty plus twenty equals forty.
   • The meeting is scheduled for twenty hundred hours.
   • He learned twenty new words this week.

2. Noun: the number, symbol, or group of twentyA2formal

   A noun referring to the cardinal number twenty; the numeral symbol 20 or XX; a set, collection, or group consisting of twenty items; a playing card displaying twenty (in extended decks); a team or ensemble of twenty members; in currency, a twenty-dollar or twenty-pound note.

   名词：二十这个数、符号或二十个一组

   • The number twenty marks a significant milestone in many contexts.
   • Circle the twenties in this financial report.
   • The orchestra includes a twenty of string players.
   • He paid with a twenty for the purchase.
   • The committee consists of a twenty of appointed experts.

3. Adjective/Determiner: amounting to twentyA1formal

   Used attributively before a noun to indicate that the quantity or number of the noun is twenty; modifies plural countable nouns to specify exact quantity.

   限定词/形容词：数量为二十

   • They booked a twenty-day tour of Southeast Asia.
   • We need twenty additional volunteers for the festival.
   • The recipe requires twenty grams of cocoa powder.
   • She has twenty years of experience in marketing.
   • Twenty international delegations attended the summit.

4. Pronoun: twenty people or things (plural)B1formal

   Used as a pronoun to refer to twenty previously mentioned or understood persons or things; takes plural verb agreement.

   代词：二十个人或事物

   • One hundred applied, but only twenty were selected for the program.
   • I invited ninety guests; twenty confirmed their attendance.
   • How many participants do we need? — Twenty will be ideal.
   • Several companies submitted bids, but twenty advanced to the final round.
   • Of the proposals reviewed, twenty were approved for funding.