北极寒流袭击加拿大，导致极端温度、学校停课和旅行警告。 Arctic cold snap hits Canada, causing extreme temps, school closures, and travel warnings.

寒冷的北极气团已进入加拿大部分地区，导致气温极低，部分地区达到 -50°C 和 -40°C。 A cold Arctic air mass hasmoved into parts of Canada, causing extremely low temperatures, with some areas reaching -50°C and -40°C. 这导致了降雪、学校停课和对非必要旅行的警告。 This has led to snowfall, school closures, and warnings against non-essential travel. 从新不伦瑞克省到阿尔伯塔省，寒潮影响了从新不伦瑞克省到阿尔伯塔省的地区，凸显了严冬天气对日常生活的影响。 The cold spell, affecting regions from New Brunswick to Alberta, highlights the impact of severe winter weather on daily life.