What does mean in english? spanish?

the shirt is grimy

it's not dirty cause in spanish is sucia and not mugrosa but it's almost the same

You're taking "bilingual" literally. When it comes to employment, you need to think of bilingual in a commercial or public outreach sense that's based on the largest groups of foreign language speakers in the area. Here in SoCal bilingual usually has to be followed with the languages needed because, besides Spanish, there's Mandarin, Tagalog and other groups to consider. Since Europeans haven't been a major immigrant group in America since the end of WW2 and since most Europeans know English, there's not much of a need for Dutch or any other European language speakers anymore.

The shirt is dirty is la camisa esta sucia. The word mugrosa could be used in some countries, and it's a stronger term meaning filthy and not used frequently

Hope this helps

The Shirt is Filthy.

The Shirt is REALLY Dirty.

the shirt is (very) dirty,

Mugre is Dirt, but it is very coloquial, at least in argentina is nearly used as Slang

mugroso is a dirty person

mugrasa, for "La camisa (feminine) then is mugrosA,

No domething you would say in polite conversation

"This shirt is filthy"

"Grimy" in Spanish is "mugriento"; "mugroso" is a word used only in certain parts of Latin America, including Mexico and Chile, and it means "filthy"

The shirt is dirty (I mean really dirty as you were working on the garage)

The shirt is filthy.

the shirt is so dirty!

The shirt is dirty.