The solution must be extensible: New IDoc types may be added in the future and should not have any effect on the existing applications.

解决方案必须是可扩展的：将来可以添加新的idoc类型，且它们对现有的应用程序没有影响。

youdao

Any new treaty must not only be unanimously agreed on but also ratified by all of the union's 27 members before it can take effect.

任何新条款都不仅要使所有的成员国对此达成一致意见，而且还要取得他们的批准方能生效。

youdao

However, they must know that the effect does not last much.

但是必须了解他们的作用不会长久。

youdao

Senators, Russians and allied leaders who insist that the U.S. must not depart from the ABM Treaty understand full well the practical effect of this arrangement.

CENTERFORSECURITYPOLICY: Which Bush on Missile Defense?

But in order to experience the full effect, a person must sit on the centreline between the two loudspeakers and not move or turn the head.

ECONOMIST: How to reproduce the ambiance of a live concert in the home

Because the Export Administration Act has not been renewed by the Congress, the national emergency declared on August 17, 2001, must continue in effect beyond August 17, 2012.

WHITEHOUSE: The White House