英语翻译The UK's Met Office says its four-day forecast is now as accu_英语解答

英语翻译
The UK's Met Office says its four-day forecast is now as accurate as its one-day forecast was 30 years ago.
求翻译和句子结构的分析~

人气：410 ℃　时间：2020-03-27 13:59:50

解答

英国气象局称其四日天气预报现已与三十年前的一日天气预报一样精确.那后面的was是作什么成分？（its one-day forecast was）是整体，与前面的（its four-day forecast is）对应。如果你非要问was是什么成分，那就是普通谓语动词be.