英语倍数表达法 increase by 是怎么用的A was increased by n times 是指现在的A变成了nA 还是(n-1)A?A was increased by 15% 是指现在A变成了0.15A还是 1.15A?A was increased by 2/3 是指现在的A变成了2/3A还是5/3A?

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英语倍数表达法 increase by 是怎么用的A was increased by n times 是指现在的A变成了nA 还是(n-1)A?A was increased by 15% 是指现在A变成了0.15A还是 1.15A?A was increased by 2/3 是指现在的A变成了2/3A还是5/3A?
英语倍数表达法 increase by 是怎么用的
A was increased by n times 是指现在的A变成了nA 还是(n-1)A?
A was increased by 15% 是指现在A变成了0.15A还是 1.15A?
A was increased by 2/3 是指现在的A变成了2/3A还是5/3A?

英语倍数表达法 increase by 是怎么用的A was increased by n times 是指现在的A变成了nA 还是(n-1)A?A was increased by 15% 是指现在A变成了0.15A还是 1.15A?A was increased by 2/3 是指现在的A变成了2/3A还是5/3A?
应该理解成
A是原来数字增加N倍后得来的
A是原来数字增加了15%得来的
A是原来数字增加了2/3得来的

increased to 表示增加到
increased by 表示增加了
A was increased by n times 表示A增加了n倍 指A变成了（n+1）A
如此下面两个答案为：1.15A、5/3A

（n+1）A
1.15A
5/3A
反正BY都是指增加了

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