A: I am not as familiar with it as I am with some of the older systems. But I am a fast learner and I can master it in a short time.
我对它并不像对其他老系统那样熟悉，但我学得很快，我能短时间内掌握它。
I am not familiar with this instrument. However it is good that there are many harmonica manufacturers, so that we have many choices.
对这款乐器，我不熟悉。然而口琴生产厂家多了，对我们是件好事，因为我们的选择余地多了。
The standard you quote is not one I am familiar with and it appears to apply to spring steel, can you please clarify?
你所报的（材料）标准我不熟悉，看起来像是用于做弹簧钢的材料，你能进一步说明一下吗？
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