an unpredictable person who may cause problems
une personne imprévisible qui peut causer des problèmes (une personne imprevisble qui peut causer des problemes)
"He’s a loose cannon who often says things without thinking."
"C'est un canon libre qui dit souvent des choses sans réfléchir." (c'est un **canon libre** qui dit souvent des choses sans reflechir)
to describe something in an overly optimistic way
controlled or used by people who could cause harm
to try very hard to help or please someone
to cause a problem that stops progress
to acknowledge someone's contribution or effort
something very easy to do