to arrive unexpectedly at a place
появиться неожиданно в месте (poyavitsya neozhidanno v meste)
"He turned up at my office without any notice."
"Он пришел в мой офис без предупреждения." (On prishel v moy ofis bez preduprezhdeniya)
to make sure someone is safe or doing well
to rebuild a friendly relationship after conflict
to operate while staying under specific limits or constraint...
to produce and release something like heat or gas
to make progress in the direction of something
to mentally drift away; to stop concentrating for a while
