America is rightfully worried about its sinking competitiveness, and does indeed need to improve its education system.

美国对自己竞争力下降的担忧不无道理，它也确实需要改进它的教育体系。

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A system of sensors and mirrors would signal the tiniest sinking-in theory.

理论上说，最轻微的地表下沉都可以被传感器和反射镜组成的系统感测出来。

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From subgrade sinking, construction methods and structure system, the paper analyzes reasons for vehicle bump at bridge head, and advances measures to avoid it.

从路基沉降、施工方法和结构体系上对桥头跳车病害进行原因分析，探讨并提出减少桥头跳车的措施。

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But, in a system which was sinking deeper under pressure, their best was never going to be enough, no matter how hard they tried.

BBC: Death on the Wards revisited

However, many big developers will likely wait to see the initial reaction to BlackBerry 10 before sinking money into creating apps for the new system.

CNN: With BlackBerry 10, struggling phone maker eyes comeback