more and more difficult 和 more and more frequent 是不是 more difficult and more difficult 和 more frequent and more frequent 的省略啊?
英语可以说 more difficult and more difficult 和 more frequent and more frequent 吗?
你把more and more difficult 立即为 increasingly difficult即可。英语中不会出现 more difficult and more difficult 这种表达的。
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