The tool should be extremely lightweight: fast to download, fast to learn and fast to operate.

该工具应该非常轻量级：下载、学习、运转都应非常迅速。

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Young age is the right to learn multiple languages and it is fun and fast to learn at that age.

小小年纪是学习多国语言正确的时间，这是乐趣和快速的学习在这个年龄。

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youdao

Whatever the change, if you pay attention to those around you it will be a fast lesson to learn in order to improve all relationships.

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Hand-in-glove with such investing is the requirement to learn fast whether an innovation is working, or not, and to adapt.

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But, if it continues to Think Big, Start Small and Learn Fast, Google will accelerate the development of driverless capabilities worth trillions to society.

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