two times

दो बार

English Usage: She has visited Paris twice.

Hindi Usage: उसने पेरिस दो बार देखा है।

the act of doing something two times

दो बार करना

English Usage: It was a twice of great importance.

Hindi Usage: यह एक दो बार करने वाली महत्वपूर्ण बात थी।

to do something two times (used in specific contexts)

दो बार करना

English Usage: They decided to twice check the results.

Hindi Usage: उन्होंने परिणामों को दो बार जांचने का निर्णय लिया।