一项最新研究表明，数钞票的止痛效果堪比布洛芬或阿司匹林等止痛药物。习。

Handling ga wad of cash may be as good at killing pain than aspirin, a new study suggests.

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在第二语言习得研究领域，颇有影响的当数美国语言学家克拉申提出的输入理论。

In the study field of SLA, the Monitor Model put forward by Krashen is an important and influential theory.

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在第二语言习得中，有许多有关动机的研究，其中最重要的调查之一要数加德纳和兰伯特的调查。

There have been many studies into motivation in foreign languages, and Gardner and Lambert do one of the most principal investigations.

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