Diriahea = Diarrhea

Do not boast of your wealth. 

Do you like burger? (Passive) = Is burger liked by you?

Doctor - Doctor

Doesn't time pass very fast?

Don't be a borrower. Don't be a lender. (Compound) = Neither be a borrower nor be a lender.

Don't try to get down a running train.

Don't waste your time. (Passive) = Let not your time be wasted.

Down to earth = বাস্তবধর্মী - He is a very down to earth person.

Drug addiction can be identified as the cause of young generation go astray.

Drunk drivers are a menace to everyone.

Effectively

Effectiveness is the capability of producing a desired result or the ability to produce desired output. It is focused on the extent to which work is done and the end result achieved.

Embark on: We embarked on an exciting enterprise.

Empty vessels sound much