I have a double bass, it makes low sounds too.

我有架提琴，声沉哦。

The double bass of the--but is it bowed?

提琴 不过是拉弓的吗？

And who is the world's most famous double bass player in bluegrass band?

在蓝草乐乐队中世界上最有名的提琴手是谁？

Nwanoku puts down her double bass and opens her e-mails, scanning for news on the permits.

Nwanoku放下提琴，打开电子邮件，浏览有关许可证的资讯。

Double the bass, double the bass, double the bass.

双倍，双倍，双倍。

I play loads of different sports and the double bass.

我玩多不同的运动和提琴。

They have double the bass of the 13-inch MacBook Air.

- 它们的是 13 英寸 MacBook Air 的两倍。