spoil

If you leave the milk out on the counter in the summer heat, it will spoil in a few hours.

(Chinese) 如果你在炎炎夏日把牛奶留在柜台上，它几小时内就会变质。

I found my lunch was spoiled because the refrigerator stopped working.

(Chinese) 我发现我的午餐坏了，因为冰箱停止运行了。

I don't want to tell you the ending of the movie and spoil the surprise for you.

(Chinese) 我不想告诉你电影的结局，以免破坏你的惊喜。

The heavy rain spoiled our plans for a weekend picnic in the countryside.

(Chinese) 大雨破坏了我们周末去郊外野餐的计划。

The grandparents tend to spoil the little boy by buying him every toy he asks for.

(Chinese) 爷爷奶奶倾向于溺爱这个小男孩，只要他开口就给他买任何玩具。

If you always give in to his demands, you will spoil his character and make him selfish.

(Chinese) 如果你总是屈从于他的要求，你会宠坏他的性格，使他变得自私。