scratcher

n.

抓扒者，抓扒工具；

Scratcher
Scratcher
Scratcher
Letter: Retrolental fibroplasia revisited
Abrasion and stain removal by different manual toothbrushes and brush actions: studies in vitro.
The use of professional brushing to compare 3 toothbrushes for plaque removal from individuals with gingival recession
Toothbrush
Comparison of a double-textured prototype manual toothbrush with 3 branded products. A professional brushing study.
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Anterior capsule cleaning with an ultrasound irrigating scratcher
Cat scratcher
Netflix’s Excuse for Its Slow Growth Is a Head-Scratcher
Severe scratcher-reaction