"Complete" 意思是 "完成"，来源于拉丁语 "completus"。
"Prepare" 意思是 "做好准备"，来源于拉丁语 "praeparare"。
例句：
I need to complete the project by tomorrow. (我需要明天前完成这个项目)
We must prepare for the meeting in advance. (我们必须提前为会议做好准备)
综上，用英语表达“做好用英语”单词可以说 "Prepare for using Engpsh words" 或 "Complete the preparation for using Engpsh words"。