also linch-pin, late 14c., earlier linspin, from Middle English lins "axletree" (see linch) + pin (n.). The peg that holds a wheel on an axle; now mainly figurative.
实用例句
1. Controlling wages is the linchpin of the Government'spolicies.
控制工资是政府政策的关键.
来自辞典例句
2. In the engine's producing, researching, using and repairing, engine - testing is the linchpin.
在发动机的生产研究和应用维修中, 发动机检测是其关键环节.
来自互联网
3. But the linchpin that network channel builds is letter platform build.
