to relax your vigilance or become less careful
relajar tu vigilancia o volverse menos cuidadoso (relajar tu vigilancia o volverse menos cuidadoso)
"Never drop your guard when dealing with competitors."
"Nunca bajes la guardia cuando trates con competidores." (Nunca bajes la guardia cuando trates con competidores.)
Someone who is too interested in other people's business.
to hope for good luck
to improve by learning from past failures
to quickly become good friends
to increase the price of something
to irritate or annoy someone very much