depressor and scraper, tongue.
压舌及刮舌器
When brushing your teeth, brush the back of your tongue, too, or scrape it with a tongue scraper.
刷牙时，还要刷刷舌根，或用刮舌器将舌头刮干净。
Buy a metal tongue scraper to remove the build up of toxins and bacteria that have formed on your tongue overnight.
买个金属刮舌器来去除晚上产生的各类毒素和细菌构成。
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