名詞 dollar:

1. the basic monetary unit in many countries; equal to 100 cents
2. a piece of paper money worth one dollar
   同義詞：dollar bill, one dollar bill, buck, clam
3. a United States coin worth one dollar
4. a symbol of commercialism or greed
   同義詞：dollar mark, dollar sign

1. These socks retail at 1 dollar a pair.
   這些襪子零賣一美圓一雙。
2. She gave the boys a dollar apiece.
   她給孩子們每人一美元。
3. The pound stayed firm against dollar in London but fell a little in New York.
   在倫敦英鎊對美元仍堅挺，但在紐約卻跌了一點兒。
4. Can you lend me five dollars?
   你能借給我五美元嗎？

dol.lar

n.Abbr. dol.（名詞）縮寫 dol.
A basic unit of currency in Australia, Bahamas, Barbados, Belize, Brunei, Canada, Cayman Islands, Dominica, Fiji, Grenada, Guyana, Jamaica, Kiribai, Liberia, Nauru, New Zealand, Saint Lucia, Saint Vincent and the Grenadines, Singapore, Solomon Islands, Trinidad and Tobago, Tuvalu, United States, and Zimbabwe.See table at currency
元：澳大利亞、巴哈馬、巴巴多斯、伯利茲、文萊、加拿大、開曼群島、多米尼加、斐濟、格林納達、蓋亞納、牙買加、基里拜、利比里亞、瑙魯、新西蘭、圣盧西亞、圣文森特和格林納丁斯、新加坡、所羅門群島、特林納達和多巴哥、圖瓦盧、美國和津巴布韋等國貨幣基本單位參見 currency
A coin or note worth one dollar.
一元錢：面值一元的硬幣或紙幣

來源：
Low German Daler [taler]
低地德語 Daler [泰勒]
from German Taler
源自 德語 Taler
short for Joachimstaler
Joachimstaler的簡寫
after Joachimstal (Jáchymov), a town of northeast Czechoslovakia where similar coins were first minted
源自 亞西莫夫 （亞西莫夫），首次制造相似貨幣的捷克斯洛伐克東北部城鎮(zhèn)