jack nut的相关资料：
临近单词
jacks
jack
jacking constructed frame bridge
Jack boomed out his greetings.
Jack is an illegitimate child.
Jack can speak five languages.
Jack keeps himself to himself.
Jack climbed up the beanstalk.
Jack-up barge type drilling rig
Jack was designated cochairman.
Jack please answer my question.
Jack takes out Vivian's camera.
