62、help oneself to sth/cannot help doing sth/cannot help to do sth 随便吃/禁不住做某事/不能帮忙做某事

　　63、hold on/hold up 坚持，稍等/阻塞

　　64、insist on/persist in/stick to 坚持

　　65、knock at the door/knock into the wall/knock out sb/knock sth off/knock sth over 敲门/撞墙/打晕某人/把……打掉/把……撞倒

　　eg：Who has knocked the vase off the shelf？谁把花瓶从架子上弄掉的？

　　66、let out the secret/keep sth a secret 泄密/保守秘密

　　67、before long/long before/it is not long before …很久之前/不久之后/不久之后便……

　　eg：It was not long before I realized that how foolish I was at that time.不久之后我便意识到我当时是多么的愚蠢。

　　68、be made up of/consist of/contain/include 由……构成/包含，包括

　　eg：The class is made up of fifty students./The class consists of fifty students./The class contains/includes fifty students.这个班由五十名学生组成。

　　69、mean to do sth/mean doing sth 打算做某事/意味着做某事

　　eg：I didn't mean to hurt you by telling you the truth.我告诉你真相并不是打算要伤害你。

　　eg：It means killing me that you lie to me.对我撒谎就意味着要杀了我。

　　70、in badly need of/in lack of/in want of 急需，缺乏