When you defrost frozen food or when it defrosts, you allow or cause it to become unfrozen so that you can eat it or cook it.
例句
She has a microwave, but uses it mainly for defrosting bread...她有个微波炉，不过主要用来解冻面包。Once the turkey has defrosted, remove the giblets.一旦火鸡解冻了之后，就把其内脏清除掉。
V-ERG
(给)(冰箱或冰柜)除霜
When you defrost a fridge or freezer, you switch it off or press a special switch so that the ice inside it can melt. You can also say that a fridge or freezer is defrosting .
例句
Defrost the fridge regularly so that it works at maximum efficiency.定期给冰箱除霜，以便它能发挥其最高效率。