Some San Jose residents say that as inequality has grown in recent years, upward mobility has become much more difficult to achieve.
圣何塞的一些居民表示，随着近年来不平等现象的加剧，实现向上流动变得更加困难。
Private equity has piles of unallocated capital, although it has become much more difficult to wrest undrawn funds from investors.
尽管它越来越难从投资者那里获得那些不打算取回的资金，私人股本仍然怀揣大量无处可投的资金。
But with the banking service updating, software system become more complex, development and maintenance become much more difficult.
但是随着银行业务的增加和更新，系统日益复杂，系统开发和维护的难度越来越高。
Moreover, the processing of vibration signals has become much more difficult because a full-of-oil complex gearbox system has been considered to record raw vibration signals.
此外，因为一个复杂的齿轮箱系统被用来记录原始的振动信号，因而振动信号的处理就变得更加困难。
Moreover, the processing of vibration signals has become much more difficult because a full-of-oil complex gearbox system has been considered to record raw vibration signals.
此外，因为一个复杂的齿轮箱系统被用来记录原始的振动信号，因而振动信号的处理就变得更加困难。
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