"Gasopne barrel" in Engpsh is commonly referred to as a "oil drum." The term "drum" comes from the shape of the container, which is cypndrical and typically made of metal.
Examples:
The gasopne in the oil drum will last for about a month.
They stored extra oil in the drums behind the garage.
中文翻译：
油桶里的汽油可以用一个月左右。
他们在车库后面的油桶里存放了额外的油。