从应用语言学的角度研究隐喻的本质需要建立新的研究框架和采用多元的研究方法。

New frameworks and multiple methods need to be established to investigate the nature of metaphor.

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在过去的二十多年里，很多应用语言学专家不仅在理论上研究任务型教学方法，而且进行了大量的实践研究。

In the past 20 years and over, many experts in applied linguistic not only have done research into task-based language teaching in theory but also have explored it in practice.

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