def get_throw_descriptions(get_nb_floor_objects, initial_state, current_state):
    """
    Get all 'throw' descriptions from the current state (if any).
    Parameters
    ----------
    get_nb_floor_objects: function
        Function that gets the number of objects thrown on the floor of the current state compared to the initial state.
    initial_state: nd.array
        Initial state of the environment.
    current_state: nd.array
        Current state of the environment.

    Returns
    -------
    descr: list of str
        List of 'throw' descriptions satisfied by the current state.
    """
    throw_descriptions = []
    nb_floor_objects = get_nb_floor_objects(initial_state, current_state)
    throw_descriptions.append('Throw {} objects on the floor'.format(nb_floor_objects))
    return throw_descriptions.copy()