坚持你的梦想,总有一天你会成功的 hold on to your dreams,you will succed some

Hold on to your dreams,and you will succed some day。如果加上一个and的话,可以不用在hold后加ing,如果没有and的话,要加上ingHolding on to your dreams,you will succeed some day。这样就成为现在分词作条件状语。