the final stage of a period or process 终点:一个时期或过程的最后阶段 One of the hardest parts of the job was that there was no defined end point to the working day. 这项工作最困难的部分之一是工作日没有明确的终点。 These clinical trials help us reach the end points necessary to see if the vaccines work. 这些临床试验帮助我们达到观察疫苗是否有效所必需的终点。