Cách sử dụng
The expression "under wraps" means to keep something a secret or to keep it hidden until a later time. For example, if you are working on a surprise party for a friend, you would keep all the details "under wraps" so that the friend wouldn't find out before the party. It is also used in the context of things being kept safe or protected. For instance, a new product may be "under wraps" until it is officially launched.