longadj.长的；冗长的；久的；长音的adv.长期地；久地；用于名词后强调某事发生在某整段时间v.渴望n.长时间；长音节；囤积商品者Longatin那可汀, 乐咳平, 诺司咳平, 诺斯卡品[镇咳药]

1. 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.
   要是你播放过老式慢转密纹唱片，你就能听到，当唱片的空穴没有置于唱机正中央，唱片每转一周，音乐都会有音调高低的变化。