Although it is snowing heavily, they continue walking.(改为同义句）They continue walking ▁▁▁▁ ▁▁▁▁ ▁▁▁▁ the heavy snow.

Although it is snowing heavily, they continue walking.(改为同义句）They continue walking ▁▁▁▁ ▁▁▁▁ ▁▁▁▁ the heavy snow.
Although it is snowing heavily, they continue walking.(改为同义句）
They continue walking ▁▁▁▁ ▁▁▁▁ ▁▁▁▁ the heavy snow.

Although it is snowing heavily, they continue walking.(改为同义句）They continue walking ▁▁▁▁ ▁▁▁▁ ▁▁▁▁ the heavy snow.
in spite of 介词,尽管
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in spite of

They continue walking although there are the heavy snow.