冬装在英文里是winter clothes还是winter jacket?谢谢!

冬装在英文里是winter clothes还是winter jacket?谢谢! winter jacket\ winter boots \ winter clothes如何翻译? 在寒假是on winter holiday还是in winter holiday 是at winter 还是in winter? 是winter's day还是winter day 是before winter还是before the winter? “北京的冬天”的英文是in winter in Beijing还是for winter in Beijing? in winter 还是 on winter 在冬天in winter 还还是in the winter 是in a cold winter 还是on a cold winter? 寒冷的冬天是the cold winter还是cold winter? 是winter and summer holiday 还是 winter and summer holidays?