Daily Chinese Idiom Guessing Game
To provide timely help when someone is in desperate need.
在下雪天给人送炭取暖。比喻在别人急需时给以物质上或精神上的帮助。
宋·范成大《大雪送炭与芥隐》诗不是雪中须送炭，聊装风景要诗来。”
When I lost my job, my friend offered me a loan - that was truly helping me in the snow by sending charcoal.