Animation is also one of the few things that cannot be currently accomplished efficiently across browsers without using special extensions.

动画也是目前不使用特殊的扩展就不能实现跨浏览器的少数几种技术之一。

youdao

Aggregating allows any number of extensions to be added, without the need for defining all possible combinations of subclasses.

聚合允许添加任意数量的扩展，而无需定义子类的所有可能的组合。

youdao

This provides the ability to simply drop in new extensions, such as various security extensions, without requiring modification to the user's classpath.

这提供了简单地访问新扩展的能力，例如不同的安全扩展，不需要修改用户的类路径即可实现。

youdao

Remember: Without extensions, the cuts go bye-bye on December 31, 2008.

FORBES: Consequential Week for U.S. and Global Economies

Many coaches have left programs themselves after signing long-term contract extensions without incurring a significant penalty for doing so.

FORBES: Bo (Ryan) Don't Know PR: Wisconsin's Transfer Mess Highlights Double-Standard in College Athletics

The government has said it might continue a scheme allowing larger home extensions without planning permission beyond the proposed three-year period.

BBC: Home extension deregulation plans 'may go on longer'