long playing record的用法和樣例：
例句
- Porter's jazz LP has run its course on the record player to your left.
波特的爵士密紋唱片就在你左側的唱片播放器里播放。 - If you've ever played an old LP record where the hole was not quite centered, you've heard the pitch rise and fall with each revolution.
要是你播放過老式慢轉密紋唱片，你就能聽到，當唱片的空穴沒有置於唱機正中央，唱片每轉一周，音樂都會有音調高低的變化。
