As with most languages, English harbors many popular expressions that if taken literally can lead to misunderstanding. In addition, they are used very frequently in daily conversations between co-workers, friends, neighbors, etc., which is why, to master this language, it is essential to know its true meaning.
To know something like the palm of your hand - This expression also exists in the Spanish language. Its translation is "to know something like the palm of your hand" and it is used in both English and Spanish to let people know that you are an expert in something. For example: «Madrid is my home town. I grew up there. I know the place like the palm of my hand »-« Madrid is my hometown. I grew up there. I know the place like the back of my hand.
A face for radio - Contrary to the previous one, this expression does not exist in the Spanish language. Its literal translation is "a face for the radio", although it is used to indirectly say that someone is ugly. For example: «Look at this broken nose and greasy hair. I'm pretty ugly. I have a face for radio »-« Look at this broken nose and greasy hair. I am quite ugly. I have a face for the radio.
to sleep on it - Literally, 'sleep on it', it's the English version of 'check it with the pillow'. It is used when you want to express that we need time to make a final decision about something. For example: «We couldn't decide which car to buy so we decided to sleep on it. We didn't want to buy the wrong one! » - «We did not decide on which car to buy, so we decided to consult it with the pillow. We didn't want to buy the wrong one! "