几乎就在五年前，美国国会削减了一种引起争议的掩体核弹——坚实型核钻地弹——的研究经费。
Almost five years ago, America's Congress cut research funding for a controversial bunker-busting nuke called the Robust Nuclear Earth Penetrator.
五年前，中国让人民币对美元脱钩，并采用了一种盯住一篮子货币的浮动汇率。
Five years ago, China unhooked the yuan from its pegged exchange rate with the U.S. dollar and adopted a floating rate with a basket of currencies.
标准库定义了五种迭代器类别：输入、输出、前向、双向和随机访问迭代器。
There are five iterator categories: input, output, forward, bidirectional, and random access.
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