seven ['sevən]
num.七
stamp [stæmp]
n.邮票
so [səu;sə]
adv.这么;那么
many ['meni]
adj.许多
very ['veri]
adv.很
American [ə'merikən]
n.美国人 adj.美国的
may [mei;me]
v.&aux.可以
please [pli:z]
int.请