bony crepitus

例句：

1. 1. The old woodenchair creaked as he sat down.
   他坐下时，那把旧木椅发出了嘎吱声。
2. 2. The oldhouse had a lot ofcreaky floorboards.
   这所老房子有很多嘎吱作响的地板。
3. 3. As the fire burned down,it created a dry crackling sound.
   随着火势减弱，它产生了干燥的爆裂声。