The Dow is a price-weighted measure, meaning the bigger the stock price, the larger the sway for a particular component, and vice versa. The first iteration included 12 mostly consumer goods and basic material suppliers like U.S. Leather and Tennessee Coal & Iron. By Hardika Singh
作者：哈迪卡·辛格
The Dow Jones Industrial Average climbed above 40000 for the first time today.
道琼斯工业平均指数今天首次攀升至4万美元以上。
It was a long road to 40000. The Dow took almost 103 years to reach 10000 in March 1999. Reaching 20000 required nearly 18 years more. Then 30000 came three years later, in 2020.
通往 40000 是一条漫长的道路。道琼斯指数花了将近103年才在1999年3月达到1万点。达到2万还需要将近18年的时间。然后，三年后，即2020年，3万美元到来。
The Dow is a price-weighted measure, meaning the bigger the stock price, the larger the sway for a particular component, and vice versa. The first iteration included 12 mostly consumer goods and basic material suppliers like U.S. Leather and Tennessee Coal & Iron.
道琼斯指数是一种价格加权指标，这意味着股价越大，特定成分的影响力就越大，反之亦然。第一次迭代包括12家以消费品和基本材料为主的供应商，例如美国皮革和田纳西煤铁公司。
Today it includes 30 stocks. There are some newcomers: Amazon.com recently joined the Dow, succeeding Walgreens Boots Alliance. Technology companies including Microsoft and Intel were added in the 1990s, while companies such as Bethlehem Steel and Woolworth dropped out.
今天，它包括30只股票。还有一些新来者：亚马逊最近加入了道琼斯指数，接替了沃尔格林靴子联盟。包括微软和英特尔在内的科技公司在20世纪90年代被加入，而伯利恒钢铁和伍尔沃斯等公司则退出了。
Stocks have generally risen alongside the Dow, which is up about 6% this year. The S&P 500 is up 11%, while the Nasdaq Composite is up 12%. All three leading indexes finished Wednesday at records.
股市普遍与道琼斯指数一起上涨，道琼斯指数今年上涨了约6％。标准普尔500指数上涨11％，而纳斯达克综合指数上涨12％。所有三个主要指数周三收盘时均创历史新高。