the gorilla in the

the gorilla in the

The following article is quoted from wikipedia,hope it helps:
The elephant in the room (also elephant in the living room,elephant in the corner,elephant on the dinner table,elephant in the kitchen,horse in the corner,etc.) is an English idiom for an obvious truth that is being ignored.It is based on the fact that an elephant in a small room would be impossible to overlook.
A similar idiom is 800 pound gorilla in the room.This apparently originates from a blend of elephant in the room with a separate idiom,"800 pound gorilla," meaning a powerful contender.(Where does an 800 pound gorilla sit?Wherever he wants!)
It sometimes is used to refer to a question or problem that very obviously stands to reason,but which is ignored for the convenience of one or more involved parties.The idiom also implies a value judgment that the issue should be discussed openly.
The idiom is commonly used in addiction recovery terminology to describe the reluctance of friends and family of an addicted person to discuss the person's problem,thus aiding the person's denial.
The idiom is also occasionally invoked as a "pink elephant",possibly in reference to alcohol abuse,or for no other reason than that a pink elephant would be more visible than a normal elephant.
The term is often used to describe a political hot potato that involves a social taboo,such as racism,which everyone understands to be at issue but which no one is willing to admit.
中文对应的解释是：视而不见
例如：对近在眼前的巨大市场视而不见