Title and Content can't be translated

on api-template.php the strings Title and Content can’t be translated:

// post_title
	if( $args['post_title'] ) {

		$fields[] = acf_get_valid_field(array(
			'name'		=> '_post_title',
			'label'		=> 'Title',
			'type'		=> 'text',
			'value'		=> $post_id ? get_post_field('post_title', $post_id) : '',
			'required'	=> true
		));

	}

	// post_content
	if( $args['post_content'] ) {

		$fields[] = acf_get_valid_field(array(
			'name'		=> '_post_content',
			'label'		=> 'Content',
			'type'		=> 'wysiwyg',
			'value'		=> $post_id ? get_post_field('post_content', $post_id) : ''
		));

	}

https://www.ads-software.com/plugins/advanced-custom-fields/