to treat someone the same bad way they treated others
относиться к кому-то так же плохо, как он относился к другим (otnositsya k komu-to tak zhe plokho, kak on otnosilsya k drugim)
"He was rude to everyone, so I gave him a dose of his own medicine."
"Он был груб с каждым, поэтому я дал ему дозу его собственной медицины." (On byl grub s kazhdym, poetomu ya **dal yemu dozu yego sobstvennoy meditsiny**)
to say something without thinking carefully or checking
To be very sure or confident about something.
to make a decision without enough information
a young or innocent kind of love
to end a disagreement and become friendly again
to learn or become skilled at something new