"Tell us why you used that method to clear the drainage tube?" Tao Zhijie asked them about their unusual operation tonight.
"Doctor Song and I both recalled some papers and thought it was very unlikely for the drainage tube to be clogged by a stubbornly large stone, so we tried a continuous low-flow irrigation." Knowing that Song Xueling was not talkative, Xie Wanying reported on behalf of both of them.
Even so, this method of operation usually has a nearly zero success rate.
"Without reporting to me, did you two think you had a very good grasp of the situation?" Tao Zhijie seemed to smile at their eyes, it appeared he was reaching the crucial point.
"Yes." Xie Wanying nodded, "I feel that if the two of us cooperate, the success rate could be eighty to ninety percent."
"A hundred percent." The usually quiet Song Xueling suddenly interjected, directly refuting her lower estimate of the success rate.
