求翻译：上小学的时候，有一次下雪了，我们放学放晚了半个小时，妈妈撑着伞在校门等了半个小时，脚已经被雪淹没了，雪风把妈妈的脸都吹青了，但是妈妈背着我的时候，披在我背上的那件衣服还是暖和的是什么意思？

In grade school, snow, our school half an hour later, the mother carrying an umbrella in the gate for half an hour, feet have been submerged by snow, the snow wind blowing green mother's face mother, behind my back, draped over the back of the dress is still warm

Primary School, there is a Snow school, we had a half-hour later on my mom, holding an umbrella in the door, half an hour, have been inundated with snow, the snow is blowing her mother's face, but his mother had back when I was in my grand prix, on the back of that piece of clothing or in the warmer

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Primary school on time, there is a snow, we put school half an hour late, mother with an umbrella in the gate waiting for half an hour, foot has been inundated with snow, snow and wind blowing in the face of mother green, but when the mother carrying me, put me on the back of the dress is still warm

Goes to the elementary school time, once has snowed, we were on vacation from school put the late half hour, mother have supported the umbrella to wait for half hour in the school gate, the foot already to submerge by the snow, the snow wind all blew mother's face has been blue, but mother was carry