词性：adj.
音标： [ˈhɛfti]
释义：重的，重大的，猛烈的，健壮的
Something that’s hefty is big and heavy. When you have to lug a hefty suitcase around, it helps if it has wheels.
This is pretty hefty punishment
We shall need a Hefty bag
Oh, you’re also responsible for this hefty hospital bill.