They should also avoid sudden exertion, such as clearing snow or pushing a car.
他们也应该避免突然用力，例如扫雪或推车。
An analogy would be to consider snow plows on the road, clearing a path.
可以考虑用铲雪机在路上除雪，清扫出一条道路来作为比喻。
Many people are busy clearing away the snow on the road.
许多人正忙着清除路上的积雪。
Snowplows on the major express way and highways are clearing snow day and night.
各大快速路，超速公路上的铲雪车正在不停的铲雪。
Snowplows on the major express way and highways are clearing snow day and night.
各大快速路，超速公路上的铲雪车正在不停的铲雪。
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