barrel这个单词什么意思?

barrel
n.
桶
vt.
装入桶内
barrel
n.[C]
1.(中间粗两端细的)大桶
The wine is left to mature in oak barrels.
葡萄酒在橡木桶中陈酿.
a beer barrel
啤酒桶
2.一桶的量;(液量单位)桶[(+of)]
This country produces about 50 million barrels of oil per month.
该国每月产油五千万桶.
How much does a barrel of oil cost?
一桶石油要多少钱?
3.枪管;炮筒
4.筒形物;笔杆;活塞筒;羽毛管
5.(牛,马的)躯干
6.【口】大量,许多[(+of)]
a barrel of fun
十分好玩
He has a barrel of money about him.
他身上带着许多钱.
vt.
1.将...装桶
vi.
1.【美】【俚】高速行进