to have uncertainty regarding something
иметь неуверенность по поводу чего-то (imet' neukladasht' po povodu chego-to)
"I have serious doubts about his honesty."
"У меня серьезные сомнения по поводу его честности." (U menya ser'yeznyye **somneniya po povodu** ego chestnosti)
to reduce the amount of time or effort spent on work
to show regard or consideration for someone or something
to start crying suddenly
to make money from an investment or situation
to mention or speak about something
to develop something centered on particular ideas or concept...
