We are not able to refuse that English is very important tool for cooperating with foreign colleagues and the big problem of using English is misunderstanding idioms which are exist in all languages and are used in routine.
Normally, idiom doesn’t mean what exactly people say or write but definition of idiom is comparing or telling indirectly.
For example, if someone says “My boss can bring a lot to the table”, it does not mean that person bring a lot of stuff to the table but the meant of this idiom means to provide something that will be a benefit.