The previous spec had a limit of 15 items, and this is still a good upper limit if you want to ensure backwards compatibility.

以前的规范限值为15个项，如果要保持向后兼容这仍然是一个很好的上限。

youdao

The previous spec had a limit of 15 items, and this is still a good upper limit if you want to ensure backwards compatibility.

以前的规范限值为15个项，如果要保持向后兼容这仍然是一个很好的上限。

youdao