Definition
to resume an activity or task that you had been engaged in previously
重新開始做某事；重拾舊業
After the summer break, I plan to go back to learning the guitar.
暑假過後，我打算重新開始學習吉他。
She has made new progress at work, but she still wants to go back to the old project.
她在工作上取得了新的進展，但她仍然想回去做舊的項目。
We can go back to this topic after the forum concludes.
我們可以在論壇結束後再回到這個話題。