经济学在个人的金融教育中是一个不可或缺的因素。
Economics is a vital ingredient in a person's financial education.
也许一些人认为频繁跳槽是一种现代生活方式，然而我相信如果一个人想要在一生中完成一些事情，坚持是一个不可或缺的因素。
Probably some people regard changing jobs frequently as a modern living pattern, while I believe if one wants to accomplish something in life, persistence is an essential element?
信号处理是精确探测系统一个不可或缺的部分，先进的信号处理技术是提高毫米波探测系统精确性的一个主要因素。
Signal processing is an indispensable part of a precise detection system. Advanced signal processing technology is a primary factor to improve the accuracy of detecting system.
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