|
小处at，大处in 例：Li and I arrived at Heishan county safe and sound， all is well. Dont worry. 李和我平安地到达黑山县，一切很好，勿念。 I live in a great city ， my sister lives at a small town while my parents live at a village. 我住在大城市，我姐姐住在一个小城镇，而我的父母则住在农村。 Im in Liaoning， at Anshan. 我住在辽宁省鞍山市。 有形with无形by，语言 、单位、材料in 例：The workers are paving a road with stone. 工人们正用石子铺路。 The teacher is correcting the paper with a new pen. 这位教师正用一支新笔批改论文。 Taking Tiger Mountain by Strategy is a good opera. 《智取威虎山》是-出好戏。 The product is separated by distilation into gasoline and gas oil. 这种产品是用蒸馏分离出气油和粗柴油。 I really cant express my idea in English freely in-deed. 我确实不能用英语流利地表达我的思想。 I wrote a novel in Russian. 我用俄语写了一本小说。 The kilometer is the biggest unit of length in the metric system. 公里是米制中最长的长度单位。 The length is measured in meter， kilometre， and centimetre. 长度是以米、公里、厘米为单位来计算的。 | 
