to work hard and focus on something
trabajar duro y enfocarse en algo (trabajar duro y enfocarse en algo)
"If you want to succeed, you have to put your nose to the grindstone."
"Si quieres tener éxito, tienes que trabajar duro." (Si quieres tener éxito, tienes que trabajar duro)
To have bad manners or lack social etiquette.
to be honest and open about one’s intentions
to make a silly or careless mistake
to return to success after a period of failure
to make someone remember something
to change political allegiance or party