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1·The bass drum and the tuba or in the marching band, it would be a sousaphone they would call it, the bass drum and tuba.

低音鼓和低音号，或在军乐队中，该是他们所说的苏萨大号、低音鼓和低音号。

2·Our brain has got all that stuff coming in there and we're probably focusing a lot on the bass and Boom, boom, the tuba that's playing there.

我们的大脑收集了所有听到的信息,而且可能更专注与低音部分,以及大号发出的邦 邦声

3·The students enter with a violin case or tuba slung over their shoulder, sometimes a double bass is dragged towards the class room.

学生带著小提琴，或将大提琴背在肩上，有时候还拖著大提琴走进教室。