倾心竭力 meaning in Chinese

exhaust every effort to; exert oneself to the uttermost [utmost] (to)

In the course of training the participants spoke without fear or hesitation and cooperated actively , especially on the afternoon of the third day in the practice class . the participants acted different roles in order to express their thoughts clearly and realistically . the participants did their best to act without considering their own status
学习过程中，学生们勇于发言，积极配合，尤其在第三天下午的模仿课上，为了能够清晰形象的表达所述内容，学员们装扮各种角色，年青的不顾及自身形象，年老的不顾及自己身体状况，倾心竭力，让听者感同身受。