问题描述：
用英语解释句子：Shenzhen is a big and modern city.
用英语解释句子：1 Shenzhen is a big and modern city.
2 Eidde is fourteen years old.Danny is twelve years old.
用英语解释句子：1 Shenzhen is a big and modern city.
2 Eidde is fourteen years old.Danny is twelve years old.
问题解答：
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