超市排队时，那个小孩因为买不到想要的糖果而发脾气了。

The child had a ___meltdown in the supermarket line when he couldn't get his favorite candy.

股市崩盘导致许多投资者遭受重大损失。

The stock market ___meltdowns caused huge losses for many investors.

核反应堆堆芯过热可能导致严重的熔毁事故。

The overheating of the reactor core could lead to catastrophic ___meltdowns.