1.Its+adj.+forsb.+todosth.对某人来说做某事怎么样，如：Itisdangerousforchildrentoplayinthestreet.孩子们在街上玩是很危险的。2.Itstimeforsth.是干某事的时间了；Itstime(forsb.)todosth.该干某事了。如：①Itstimeforthemeeting.该开会了。②Itstimeforustogotoschool.我们该上学了。3.Ittakessb.sometimetodosth.做某事花某人一些时间。sb.spendsometime/moneyonsth./(in)doingsth.某人花时间(金钱)在某事上/花时间(金钱...
