Using"knew"meantthatyouusetoknowthesewords.这句不懂meant是mean的过去式吧,那后面跟的that句子怎么没见过去时的影子?还有useto这是use的什么用法?那beusedtodo

Question

Using "knew" meant that you use to know these words.这句不懂
meant 是mean 的过去式吧,那后面跟的that句子怎么没见过去时的影子?
还有 use to 这是use的什么用法?
那be used to do

Answer 1

Using "knew" meant that you use to know these words.中的meant 表示“意味着”,就是“用'knew'意味着你过去就知道这些单词了”.
句中use to 表示“过去常常（做某事）”；
be used to do 表示“习惯于做某事”