第三句:
春节贴福字是民间由来已久的习俗。
译文一
It has been a long-standing folk custom to paste the fu character during the Spring Festival.
思路:“由来已久” 表示这一习俗从过去一直延续到了现在,故该句用现在完成时。“由来已久的” 可译为 long-standing。
译文二
The custom of pasting the character “fu” on doors during the Spring Festival has a long history in Chinese folk culture.
译文三
Pasting the “fu” character during the Spring Festival is a longstanding folk custom.
注:表达“由来已久”的常用方式:a longstanding...;has a long history;has long been...