bulk的双解释义是:n.(名词)[U](巨大)物体,(大)块,(大)团 largeness of size, shape, or mass[S]主体,绝大部分 the main or largest part。bulk的例句是用作名词(n.)It's not their weight that makes these sacks hard to carry, it's their bulk.这些袋子难以搬运,倒不是因为重而是体积太大。bulk的意思是n.体积;容积;大块;大部分;大批;adj.散装的;大量的;vt.使膨胀;使成堆;vi.膨胀;显得重要。