be use to do ,be worth to do ,be willing to do ,hope to do 的

be use to do ,be worth to do ,be willing to do ,hope to do 的 be willing to do sth be willing to do还是be willing to doing be worth to do还是be worthy to do be willing to do sth difficult是什么意思? be worth to do 还是doing be worth to do sth 还是be worth doing sth be willing to do sth 与be ready to do sth的区别 be used to doing,be used to do,used to do,be used for,be use be to do,be going to do,will do,be about to do的区别. be kept to do be paid to do