When you can build your own closures in a simple and convenient way, you find techniques that open up a whole new range of possibilities.

当您可以用一种简单便利的方式构建自己的闭包时，您就找到了能带来更多新可能性的技术。

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This method is simple and convenient.

此种方法简单易行，便于操作。

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He found a simple and convenient way to solve the problem.

他找到了解决那一问题的简便方法。

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Instead, they made cheap but ever improved copiers whose sales increased rapidly because the copiers were small, simple and convenient.

FORBES: Magazine Article

In the real world, the concept of a token generally refers to the act of substituting something simple and convenient for something more cumbersome or complicated.

FORBES: Tokenization And The Collapse Of The Credit Card Payment Model

Offering video calls also fits into the new imperative to make communicating simple, convenient and multi-format.

FORBES: Facebook, Google Battle To Be Video-Calling Home Base