add_filter( 'rwmb_meta_boxes', 'your_prefix_function_name' );

function your_prefix_function_name( $meta_boxes ) {
    $prefix = '';
	$post_type = $_GET['post_type'];
	$taxonomy = '';
	$placehold = '';

	if ($post_type == 'education') {
		$taxonomy = 'education-category';
		$placehold = '教育推廣';
	}
	if ($post_type == 'marketing') {
		$taxonomy = 'marketing-category';
		$placehold = '行銷宣傳';
	}
	if ($post_type == 'other') {
		$taxonomy = 'other-category';
		$placehold = '其他';
	}


    $meta_boxes[] = [
        'title'      => __( 'education marketing and others field', 'your-text-domain' ),
        'id'         => 'education-marketing-and-others-field',
        'post_types' => ['education', 'other', 'marketing'],
        'style'      => 'seamless',
        'fields'     => [

            [
                'name'       => __( '物件性質', 'your-text-domain' ),
                'id'         => $prefix . 'taxonomy_b375opj15eo',
                'type'       => 'taxonomy',
                'field_type' => 'select',
				'taxonomy'   => [$taxonomy],
				'placeholder' => $placehold
            ]
        ],
    ];

    return $meta_boxes;
}