| 释义 |
stack n.整齐的一叠（或一堆）〖同〗pile/vt.把……叠成堆，堆入于〖同〗heap
〖题〗There's a whole ___ of bills waiting to be paid. A.stock B.stack C.number D.sequence
〖解〗答案B。stock库存，备料，股票；number数目，数字(whole number整数)；用number表示“许多”时，其修饰词一般用large：a (large) number of；sequence序列，次序，边续。
〖词组〗be stacked with sth.堆满了……；stack sth. up 把某物堆起来 |