to go through many emails and find the relevant ones
просматривать множество писем и находить важные (prosmatrivat' mnozhestvo pisem i nakhodit' vazhnie)
"I spent an hour filtering through emails this morning."
"Я провел час, фильтруя письма этим утром." (ya provel chas, **fil'truya pis'ma** etim utrom)
to continue trying hard to achieve something
to remain committed to your plans and objectives
to fail to take advantage of an opportunity
to expand the amount of goods sold abroad
to resist pressure or negativity with determination
to work very closely and effectively with someone
