1.表示“标准或单位”的介词:at, for, by (1)at表示“以……速度”“以……价格” He drove at a speed of 80 miles an hour.他以每小时8英里的速度行驶。 I sold my car at a high price.我以高价出售了我的汽车。 (2)for用……交换 I bought it for 20 dollars.买它...
Among the annoying challenges facing the middle class is one that will probably go unmentioned in the next presidential campaign: What happens when the robots come for their jobs? Don‘t dismiss that possibility entirely。 About half of U.S。 jobs ...
由此,笔者也产生了好奇心,试图通过网络搜索探究“起步价”这一在我们听来耳熟能详的说法,在英语里究竟用的什么地道表达。结果发现,base price,flag fall 和flag-down fare等词语属于在...
更多内容请点击：初中英语知识点总结:初中英语语法——用途的介词