Replace brush head every 6 months.

取代毛笔头每6个月。

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Replace your brush every three to four months, sooner if it's frayed, and right after you've had a cold, flu, mouth infection or sore throat.

每三至四个月更换你的牙刷，牙刷有磨损的话就早点换，如有伤风，感冒，口腔感染或咽喉肿痛的话也应立即更换牙刷。

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Therefore, not only is it recommended to replace your toothbrush every 3 months but also thoroughly rinse your brush following each use to remove any remaining toothpaste and debris.

因此，它不仅是建议更换牙刷每3个月，但也彻底冲洗你的画笔在每次使用后删除任何剩余的牙膏和碎片。

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Clinique recently introduced Chubby Sticks for eyes with a dome-shaped tip, meant to replace traditional brush-on powder eye shadow.

WSJ: Clinique Chubby Sticks Are Some New Products Promising Faster, More Precise Makeup