I bought three sacks of rice.是什么意思？

I bought three sacks of rice.

我买了三袋米.

bought

v. 购买，购得( buy的过去式和过去分词 )，做出牺牲以获得，够支付，买通；

例句
He bought two bottles of vodka on account.
他挂账买了两瓶伏特加酒。

three

num. 三，三个，第三（章，页等）；n. 三岁，三个人[东西]，三，三个；adj. 三的，三个的；

例句
Outsiders who wed islanders are given only three years' right of abode at first.
岛外的人和岛民结婚之初只能获得三年的居住权。

sacks

n. 洗劫( sack的名词复数 )，大袋，麻袋，床；

例句
The sacks of rice were swarming with bugs.
一袋袋的米里长满了虫子.

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

rice

n. 稻，稻米， 大米；vt. 筛选；

例句
The sudden appearance of a few bags of rice could start a riot.
突然出现几袋大米可能会引起骚乱。