一段石阶从鹅卵石路上一直向上直通城墙。A number of staircases ascend from the cobbled streets onto the ramparts.过了林木线之后沿着长满青草的小道直通陡峭的顶.Above the treeline take a grassy path leading steeply towards the summit.这条路直通那儿.The road leads direct th...
7岁的孩子中1/4以上都不会正确地做加法运算。More than a quarter of seven year-olds cannot add up properly.那是简单的加法.That is a simple addition.加号用于加法;减号用于减法.The plus sign is used in addition and the minus is used in subtraction....