她周末喜欢骑着街车在城市里兜风。

She enjoys riding her ___streetbike around the city on weekends.

他的街车非常适合在拥挤的城市街道上穿行。

His ___streetbike is perfect for navigating through crowded city streets.

他刚买了一辆可以在公路上合法行驶的街车。

He just bought a new ___streetbike that's fully legal for road use.