ionic 栅格布局 row row-wrap后 最后一行显示文本不显示

Question

 <div ng-controller="myCtrl" class="row row-wrap">
        <div class="col col-25" ng-repeat="x in icon">
            <a class="col-demo" href="#">
                <img src={{x.Img}} class="img-responsive">
                <span>{{x.Text}}</span>
            </a>
        </div>
    </div>