The key with those foods is not to wait until you turn 50 to suddenly start eating them.

这些食物的关键是你不要等到50岁了才突然开始。

youdao

Other operations in life don't require confirmation. Your car does not ask, "do you really want to start the engine?" when you turn the key.

生活中的操作从来不需要确认：当你旋转钥匙的时候，汽车不会问你：“你真的确定想要启动引擎么？”

youdao

There are turn-key systems that anyone can start with little or no experience.

还有交钥匙系统，任何人都可以先从很少或没有经验。

youdao

Continental, another big auto supplier, is showing off applications that turn your smartphone into a key that can open and start your car.

FORBES: Go To The 2012 Consumer Electronics Show And A Car Show Breaks Out

We confronted this crisis head on, and we did it by implementing a comprehensive strategy to stabilize the key sectors that are behind the down turn, while investing deeply in trying to jump start jobs and investments, particularly -- not only in big cities, but also in rural America, in small towns.

WHITEHOUSE: Opening Remarks by the Vice President at the Business Leaders Roundtable on the Recovery Act | The White House