On the other hand, you might be wise to begin with research if you intend to tackle an issue you do not fully understand.

另一方面，从调查开始也许会是一个明智的选择，如果你打算去解决一个你并不是完全懂的问题。

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On the other hand, atomic coherence effect is an important topic in quantum optics and laser physics and it always has been one of hotspots in scientific research.

另一方面，原子相干效应是量子光学和激光物理学的重要课题，一直以来都是科学研究的热点之一。

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Oral historians participate in interviews as an observer and direct contactor when it comes to their research targets. Hence, the first-hand materials can be obtained.

口述史学家以观察者的身份参与口述访谈工作，同时，口述史学家与研究对象直接接触，从而获得第一手的口述史料。

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Now new research finds that this hand position creates an "invisible web" of water that gives swimmers more speed.

MSN: Fastest swimmers make webbed hands out of water