B1
Câu 1. However, câu 2. · Câu 1; therefore, câu 2.
however、nevertheless、therefore
讲解
这组连接副词连接的是两个句子，而不是像 but 或 so 那样连接两个从句。它们放在后一句的开头并加逗号，或者放在分号之后。 常见陷阱：不能当 but 用：It is expensive however I bought it ✗。要分成两句：It is expensive. However, I bought it ✓。
例句
The price is high. However, the quality is excellent.
价格很高。不过质量非常好。
He studied hard; therefore, he passed.
他学习很努力，因此通过了考试。
It was late. Nevertheless, they continued.
已经很晚了。尽管如此，他们还是继续了。
练习
通过选择题测试你的掌握程度
高效学习“Câu 1. However, câu 2. · Câu 1; therefore, câu 2.”
语法点“Câu 1. However, câu 2. · Câu 1; therefore, câu 2.”（however、nevertheless、therefore）是 CEFR 3 级别的重要结构之一。要熟练运用这个结构，你需要弄清楚它的使用语境，并经常练习。
学习小贴士：把例句大声朗读多遍，培养自然的语感反应。然后试着结合自己的生活情境造句。用发音按钮听标准发音并跟着练习。
你也可以查看完整课程“”，更深入地了解相关的语法和词汇。