This is the 10059th most frequent Japanese word.
通る
"通る" means "to pass through," "to go along," or "to be accepted."
Here, "通る" indicates going through or traveling across a place, in this case, a park.
駅に向かう途中で公園を通った。
I passed through the park on my way to the station.
In this usage, "通る" represents the idea of regularly going along a particular path or route.
毎日この同じ道を通って学校に行きます。
I take this same path to school every day.
Here, "通る" metaphorically expresses the concept of approval or progression through a system, in this case, through parliament.