1. However　　1)We thought the figures were correct. However, we have now discovered some errors.我们原以为这些数据正确，不过我们现在发现了一些错误。　　2)However, he smothered, as best he was able,

连词的用法分为并列连词和从属连词两种，前者用于连接两个或者两个以上并排列举的单词、词组或者句子，后者用于连接从句和主句。连接单词与单词、词组与词组、句子与句子、从句与主句的词叫连词。它是虚词，不能独立作句