an amount of和amounts of 后面加什么名词啊?

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an amount of和amounts of 后面加什么名词啊?
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an amount of和amounts of 后面加什么名词啊?
an amount of和amounts of 后面加什么名词啊?

an amount of和amounts of 后面加什么名词啊?
an amount of加不可数
amounts of 加可数

an amount of通常与不可数、无生命的名词连用,后谓语动词用单数
amounts of修饰不可数名词,谓语是复数

an amount of+不可数名词
amounts of+可数名词复数