如何区分instead和however

如何区分instead和however 如何区分instead和however 怎样区分however和instead?它们都有转折的意思.怎样区分呢? instead和instead of如何区别? however 和 but怎么区分用法?RT! instead和instead 请分别用though,however和instead造句要写汉语 whatever,however怎么区分? instead 与however的区别是什么? carry take bring用法区分take spend cost pay 用法区分几种现在完全时的表达方式(用since for前和后的区分)instead instead of用法区分how what 感叹句用法区分 whatever,however用法怎么区分? 如何区分蔗糖和食盐如何区分蔗糖和食盐. 如何区分轻油和重油 如何区分酒精和汽油 如何区分汽油和酒精 如何区分酒精和汽油 如何区分有机物和无机物? 如何区分大米和小米?