1. Unscrew the diaphragm from the compressor. 从压缩装置上拧松隔膜。
2. Unscrew the bonnet by turning counterclockwise. 反时针方向旋转拧松阀盖。
3. Unscrew your harmonica. Then take a wet tissue and clean the parts. Dry them with a dry tissue, then put your harmonica back together. 卸下口琴上的螺丝,然后用一块湿润的纸巾来清理内部的部件,再用干纸巾擦干。最后把口琴用螺丝装起来。
英英解释
v.
1. loosen something by unscrewing it
2. loosen by turning