extensive research是什么意思 extensive research怎么读
extensive research的用法和样例
- Extensive research has been done into this disease.
对这种疾病已进行了广泛研究。 - In the course of extensive researches it was found that water stored underground kept its temperature well.
在广泛研究的过程中发现储存在地下的水能很好地保持着它的温度。
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