to examine something in great depth
深入检查某事 (shēn rù jiǎnchá mǒu shì)
"The analyst will drill down into the sales numbers for trends."
"分析师将深入分析销售数据，寻找趋势。" (Fēnxī shī jiāng shēn rù fēnxī xiāoshòu shùjù, xún zhǎo qūshì.)
to take full responsibility for something
to think you are very good or important
to recover from a setback or failure
the absolute and complete truth
kept secret or very confidential
to stay focused on your goal
