动词短语
中文翻译：挖深
同义词：
['dig into', 'delve into', 'probe into']
例句：
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1. The engineer was digging deep into the problem to find a solution.
工程师正在深入研究问题以找到解决方案。
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2. The scientist is probing into the origins of life on other planets.
科学家正在研究其他行星上生命的起源。
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3. They are digging into their research notes to find more information.
他们正在翻阅研究笔记以获取更多信息。