如果您想要表达"卫生不达标"，您可以使用以下英文表达：

Unsatisfactory hygiene
Poor hygiene

这两个表达都指的是卫生状况不达标，即卫生达不到预期的标准。

例句：

The restaurant was shut down by the health department due to unsatisfactory hygiene.（由于卫生不达标，饭店被卫生部门关闭。）
The campground was dirty and had poor hygiene, so we decided to leave.（露营地很髒，卫生不达标，所以我们决定离开。）

这两个表达都来源于英语单词"hygiene"，它的意思是"卫生"。