The chancellor knows that the principle of subsidiarity must be guaranteed and shown to work.

财政大臣很清楚，必须保证权力下放原则得到贯彻执行并使之奏效。

柯林斯高阶英语词典

The chancellor knows that the principle of subsidiarity must be guaranteed and shown to work.

财政大臣很清楚，必须保证权力下放原则得到贯彻执行并使之奏效。

柯林斯例句