extremely hard and bitter

In order to break this situation, the U.S. government, represented by Ford ( the late Carter) President and Secretary Henry Kissinger, began the extremely hard and bitter struggles activities to lifting the arms embargo.

为了打破这一局面，以福特（后期为卡特）总统、基辛格国务卿为代表的美国政府开始了艰苦卓绝的取消武器禁运的活动。

The experts and scholars of the circles of theory are all carrying on untiring research work for it, practice too in make great efforts to go on extremely hard and bitter reform pilot work department.

理论界的专家和学者都在为之进行着不懈的研究工作，实务部门也在努力进行着艰苦卓绝的改革试点工作。

The Jinggang spirit, developing in extremely hard and bitter struggle in Jinggangshan, is the valuable spiritual treasure of our party.

在艰苦卓绝的井冈山斗争中形成的井冈山精神，是我们党的宝贵精神财富。

The Party has several hundred thousand members who are leading the people in extremely hard and bitter struggles against the enemy.

党有几十万党员，他们在领导人民，向着敌人作艰苦卓绝的斗争。