John Snow wanted to face the challenge and solve this problem.
约翰·斯洛想面对这个挑战，解决这个问题。
How does it assess learners? And what kind of problem and challenge does it face? These questions are what we are intended to explore in this paper.
什么是基于任务的语言测试？它作为一种新的语言测试方法，存在哪些问题和挑战？笔者就这些问题进行分析和探讨。
John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be controlled until its cause was found.
约翰·斯诺想面对这个挑战并解决这个问题，他知道只有找到霍乱的病因才能控制它。
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