Compliance with Practice Advisories is optional.是什么意思？

Compliance with Practice Advisories is optional.

是否遵守实务公告由审计师自行选择决定.

compliance

n. 服从，听从，承诺，柔软度，顺度；

例句
Inspectors were sent to visit nuclear sites and verify compliance with the treaty...
监督员被派去视察核武器基地并核实条约的遵守情况。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

practice

n. 练习，实践，（医生或律师的）业务，惯例；vi. 实行，惯常地进行，练习，实习；vt. 实行，实践，执业，练习，惯常地进

例句
...a Code of Practice that would give patients right of access to their medical records.
允许病人查看自己病历的职业准则

advisories

n. （有关进展、动向、建议等的）报告( advisory的名词复数 )，公告，通告，通报；

例句
Compliance with Practice Advisories is optional.
是否遵守实务公告由审计师自行选择决定.

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

optional

adj. 可选择的，随意的，任意的，非强制的，选修科目；

例句
We also recommend a full day optional excursion to the Upper Douro...
我们还推荐去杜罗河上游的短途自选一日游。