to be unfaithful to your partner
быть неверным своему партнеру (byt' nevernym svoemu partneru)
"She found out that her boyfriend had cheated on her."
"Она узнала, что ее парень изменил ей." (Ona uznala, chto yeye paren' izmenil yey.)
to test the flavor of food while cooking
to start enjoying or developing an interest in something
to make systems or devices work together in harmony
to prepare in advance for possible events or risks
to gradually disappear or lose effect
to report obstacles as soon as they appear