to start being used or enforced
comenzar a ser utilizado o aplicado (comenzar a ser utilizado o aplicado)
"The new tax regulations will take effect from January."
"Las nuevas regulaciones fiscales entrarán en vigor a partir de enero." (Las nuevas regulaciones fiscales **entrarán en vigor** a partir de enero.)
to do something to show you are sorry and to fix a problem
to arrive at a place
to not feel confident or certain about something
to become full or crowded with something
to stop giving reasons for not doing something
to refuse to give information or something to someone