to suffer because of one’s own mistake
пострадать из-за собственной ошибки (postradat iz-za sobstvennoi oshibki)
"He burned his fingers by investing in a risky business."
"Он обжёгся, вложив деньги в рискованный бизнес." (on obzhogsya vlozhiv den'gi v riskovannyi biznes)
to reduce the price of something
To inquire wisely to gain understanding.
to criticize someone angrily
to adapt one’s thinking for modern changes or innovation
to write something quickly for later use
used to introduce a new topic or add extra information