Thousands of people and vehicles were stranded as roads become impassable in Sichuan province.

成千上万的市民和车辆被滞留在道路成为四川省无法通行。

youdao

Many southerners live in remote areas difficult to access by road, and many roads become impassable during rainy season.

VOA: standard.2010.03.23

It turns especially treacherous during the rainy season (December to March), when the lack of asphalt or concrete paving leads the road to become impassable in many spots.

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