深究用英语怎么说？

深究

例句

• Georgos was uncomfortable under Birdsong's scrutiny and changed the subject. 乔戈斯让伯德桑的深究搞得很不舒服就换了个话题.
• We should not delve too deeply into this painful matter. 我们不应该过分深究这件痛苦的事.
• Now we cannot get hold clearly of aesthetical object's forming, structure and its specific property. 审美对象对我们来说,有似曾相识而并不熟识之感,真正深究起来,对它的形成 、 结构和特性都不甚清楚.
• The enquiry dug deeper into the alleged financial misdeeds of his government... 这一调查对其政府涉嫌的财政违规行为展开了进一步深究。