hold on to sth hold up to

hold on to sth hold up to hold on to do sth 还是hold on to doing sth hold on to do sth 还是hold on to doing sth hold on to doing sth 还是hold on to do sth hold on ,hold up,hold to,hold out分别 坚持做某事,是hold on to do sth.还是 hold on to doing sth.有何区别? Hold on to your hold on to forever hold on to a hold on to the hold on to the hold on to the hold on,hold onto,hold to有什么区别呢? hold on to do sth hold on to doing sth ,哪个对look forward to doing 这里又怎么搞的 I'll hold on to hold on to 的意思 hold on to your love hold on to your love