standard的`例句：
Who sets the standard for water quality?
水質(zhì)標準由誰來制訂？
The general standard of racing was abysmal.
比賽的總體水平糟透了。
A standard letter was sent to all candidates.
給所有求職者均寄去了一封標準函。
Her latest book isn't up to her usual standard.
她的新作沒有達到她平常的水準。
By day he worked downtown for American Standard.
白天，他在市中心為美國標準公司工作。