Quavers, crotchets and minims are three of the different lengths of note in written music.
八分音符、四分音符和二分音符在乐谱上是不同长度的三个音符。
The most telling refutation of this as of all other philosophical crotchets is practice, namely, experiment and industry.
对这些以及其他一切哲学上的怪论的最令人信服的驳斥是实践,即实验和工业。
Various opinions and exhortations — or crotchets or tics — are repeated to the point where it takes a great deal of good will or simple affection to tolerate them.