"背记英语单词"用英语叫"memorize Engpsh vocabulary"。
"memorize" 来源于拉丁文 "memorare"，意思是"记住"。
例句：
I need to memorize these Engpsh words before the exam. (我需要在考试前背这些英语单词。)
She memorized the entire dictionary to improve her vocabulary. (她背了整本字典来提高她的词汇量。)
He spent hours every day memorizing new words. (他每天花几个小时来背新单词。)