Draw a blank 一无所获，毫无回应 Episode 201210 / 10 Dec 2020 Learn a phrase to describe when someone doesn’t get the answer or result they are looking for ...

例句 The results of this year's final exams will provide a litmus test for the school's new admission policy. 今年期末考试的结果将是检验该校招生新政策是否奏效的试金石。 My own litmus test for true friendship is whether they will ...