不可推卸的责任和义务 Incumbent responsibility and obligation
对尤希奇恩克先生来说，他认为将乌克兰从一个前苏联国家转型为一个欧洲国家是他不可推卸的任务。
For his part, Mr Yushchenko sees it as his mission to transform a post-Soviet country into a democratic European one.
面对提高农民环保意识这样一个重大课题和任务，大众传媒具有不可推卸和至关重要的作用。
Facing up with such a big project as improving farmers 'awareness of environmental protection, mass media plays an vital role.
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