we need some kind of iron support

我们需要用一点铁来辅助支撑
So first they started putting pieces of iron

开始的时候是放一个铁片
and then ultimately an entire frame, a bed of iron, cast iron,

到最后底部的整个框架都是铁的铸铁
underneath that thing for that soundboard to rest in

然后他们将响板置于其中
Then we need the--at the other end we need a pin block

而在另一头我们需要一个弦轴板
and that pin block has to be very secure

它必须非常牢固
because that's where the pins

因为琴弦就是靠这块弦轴板
that anchor the strings are going to be

来固定的
Most of the problems--

通常情况下
if you think you've got a deal on a piano sometime,

你准备买钢琴的话
check your pin block, because you probably don't

请先检查弦轴板很多人不懂这招
It probably has cracks in it

它可能有裂纹