You must be careful about this: Some people give different versions of a will to different people, and others are constantly changing their minds and thus leave many different wills. If you forget to write the date on your will, then it will result in people not knowing whether it is the final version.
要小心的是，有些人會把不同版本的遺囑留給不同的親人，也有人會自己翻來覆去立好幾份遺囑；這其中只要有一份遺囑忘了寫日期，就會形成「不知道那份是最後版本」的困擾。