英语中“但是”有多种转折表达方式,各有独特用法与语境,能让交流更精准。最常见的是“But”,用于直接连接相反或对比的句子,如“I wanted to go, but I was too busy”。“However”更正式,多用于书面语,可放句首、句中或句尾且用逗号隔开,例如“The weather was bad; however, we decided to proceed”。“Although”和“Though”引导让步状语从句,表“虽然……但是”,后者更口语化,如“Although it rain...