از کیسه خلیفه بخشیدن	Make free/ bold with sth
Example: Your friends at the party who made so free with the drinks were not invited.

با چشم غیر مسلح	With the naked eye
Example: You should not look at the sun with the naked eye.

به امتحانش می ارزد	Give it/ sb a try
Example:  Even if you think you will not enjoy, give it a try.

وارد اصل مطلب شدن	Get down to business
Example: Well, time’s moving on; I suppose we’d better get down to business now.

مثل ساعت کار کردن	As regular as clockwork
Example: The postman comes at 8:40 in the morning as regular as clockwork.