... a stubborn illness顽疾 stubborn problem棘手的问题 inquire a matter of sb.向某人打听一件事 ...
双语例句
1
For several years, electric malfunction accident is an stubbornproblem which puzzled power plant and power grid safe operation.
多年来电气误操作事故是困扰发电厂及电网安全运行非常严重的一个“顽症”。
2
With the largest amount of debt relative to the size of its economy among the rich countries, and a stubborn deflation problem to boot, Japan has an economic time-bomb ticking beneath it.