good Samaritan

名词 good samaritan:

1. a person who voluntarily offers help or sympathy in times of trouble

1. My neighbour was a good Samaritan when I sprained my ankle. She did all my shopping and took the dog for a walk every day.
   当我扭了脚脖子时，我的邻居不厌其烦地帮助我。她帮我购买所有的物品并每天帮我去遛狗。