The price of vegetables has been doubled because of the weather.由于天气不好,蔬菜价格翻了一翻.请问 ,这里 has been 有什么用.

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The price of vegetables has been doubled because of the weather.由于天气不好,蔬菜价格翻了一翻.请问 ,这里 has been 有什么用.
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The price of vegetables has been doubled because of the weather.由于天气不好,蔬菜价格翻了一翻.请问 ,这里 has been 有什么用.
The price of vegetables has been doubled because of the weather.由于天气不好,蔬菜价格翻了一翻.
请问 ,这里 has been 有什么用.

The price of vegetables has been doubled because of the weather.由于天气不好,蔬菜价格翻了一翻.请问 ,这里 has been 有什么用.
has been doubled是现在完成时的被动语态

现在完成时

“俊狼猎英”团队为您解答。
用has been doubled,表示菜的价格现在已经翻了一番,到现在为止还没回落。如果用一般过去时,则无法表达这个意思,只能说过去某个时间翻了一番,但现在的情况不知。
祝你进步!

has been 是现在完成时,表示已经完成的动作并且对现在有一定影响,也就是蔬菜价格已经翻了一番,现在仍然是这个状态,所以用完成时。