北京结束145天无有效降水纪录

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Light snow and sleet fell in Beijing Saturday morning, breaking the city's longest dry spell in at least 47 years, according to the municipal meteorological observatory.

3月17日，北京出现小雪和雨夹雪天气。市气象部门表示，本次降雪结束了北京至少47年以来最长的干旱记录。

Dry spell指“干旱期”，这里的spell意为“一段时间”，比如，hot spell(连续高温天气)，a spell of summer heat(持续一段时间的炙热天气)等。

As of Friday, the capital had recorded 145 consecutive days without "effective precipitation" .

截止3月16日，北京连续无有效降水日数已经达145天。

有效降水(effective precipitation)指的是日降水量大于或等于0.1毫米(precipitation of more than 0.1 mm in one day)。据南郊观象台的记录，当日上午9点，北京市城区的平均降水量为0.3毫米。

【相关词汇】

blizzard 暴风雪

flurry 小阵雪

frost 霜

hail 冰雹

sleet 雨夹雪

freezing rain 冻雨(注：冻雨不同于雨夹雪或冰雹，这种雨从天空落下时是低于0°C的过冷水滴，在碰到树枝、电线、地面或其他地上物，就会在这些物体上冻结成外表光滑、晶莹透明的一层冰壳。)

等了145天，终于盼来了一场雪，网友们纷纷跑出去玩雪了，你们感受一下!

Kids have fun in the Yanqing District of Beijing, capital of China, March 17, 2018. [Photo/Xinhua]

People take shelter from the snow at the entrance of a subway station in Beijing, capital of China, March 17, 2018. [Photo/Xinhua]

A child has fun in snow in Beijing, capital of China, March 17, 2018. [Photo/Xinhua]

A woman takes photos for a child in snow in Beijing, capital of China, March 17, 2018. [Photo/Xinhua]