She says the French education system is light years ahead of the English one.

她说法国的教育体制远比英国的先进。

《柯林斯英汉双解大词典》

Additionally or optionally, plan ahead to migrate critical services to another system in the case of emergency.

另外，应该提前计划在发生紧急事件时如何把关键服务迁移到其他系统上。

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Many accidents actually happen when drivers look at the navigation system and the car ahead stops.

事实上很多（交通）意外的发生就是在司机看着导航系统的同时前面的车停下来了。

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Rio has received London's top tips on how to run a smooth transport system ahead of the 2016 Olympic and Paralympic Games.

BBC: London gives top transport tips for Rio 2016

Locals have caught peeks of the final product over the past couple of months as producers tested the lighting system ahead of the big debut.

CNN: San Francisco turns a bridge into art with 25,000 lights

One of the loudest cheers came for a 14-year-old Brazilian boy who had used Arduino to create an earthquake prediction system ahead of the government.

BBC: TEDGlobal: Burns portrait comes alive at TED