to explore or investigate deeply
गहराई से अन्वेषण करना या जांचना (gaharai se anvyeshan karna ya jaanchna)
"The scientist decided to delve in to the mysteries of the deep sea."
"वैज्ञानिक ने गहरे समुद्र के रहस्यों में गहराई से अन्वेषण करने का निर्णय लिया।" (Vaigyanik ne gahare samudr ke rahasyon mein **delve in** karne ka nirnay liya.)
to think carefully about what went wrong and learn from it
to reduce mental or emotional activity to relax
to make someone responsible for their actions
to attract or involve countries into joint activities
to strengthen trade relationships between nations
to remove distracting thoughts and relax mentally