In this grammar structure, we learn about a way to say "all" that is, well, a bit more epic. Sort of like how we might say "all the king's men" or "all the money in the world."
Structure
"所有的... 都..." (suǒyǒu... dōu...) is a pattern used to refer to "every" or "all" of a noun, with the quantity of said noun usually being fairly large.
所有的+noun+都+Adjective
Examples
Suó yǒu de zì xínɡ chē dōu tài ɡuì。
所有 的 自行车 都 太 贵。
所有 的 自行车 都 太 贵。
All of the bikes are too expensive.