Flexible - Any incompatible change results in a new version of the service contract, and the contract is designed to support backwards compatibility but not forwards compatibility.

灵活——所有不兼容的更改导致服务契约的新版本，契约的设计支持向后兼容，但不支持前兼容。

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With Germany currently playing with a lone striker, Low has not ruled out the possibility of using both forwards in tandem.

针对目前德国队使用单前锋的战术，勒夫并不排除会使用双前锋前后站位的战术。

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"I spend my whole time telling the forwards not to kick goals after training so maybe I have got it wrong!"

BBC: I enjoyed pressure kick - Crane

But with Leicester's forwards not giving Gloucester an inch, there was to be no way back and three scores in 19 minutes ended the game as a contest.

BBC: Gloucester 16-44 Leicester

But I want everybody here to have confidence that if we keep on working hard, we don't shy away from these tough challenges, and we're not looking backwards, we're looking forwards, then not only is Las Vegas going to thrive in the 21st century, not only is Nevada going to thrive in the 21st century, but all the United States of America is going to thrive.

WHITEHOUSE: President Obama Addresses Business and Tourism Leaders