认真刷牙齿用英语怎么说

"Brushing teeth" 就是认真刷牙齿的意思。这个短语来自于英语中的动词 "brush", 意思是"刷, 擦"。
例句：
Remember to brush your teeth twice a day to keep them healthy.
记得一天刷两次牙，以保持牙齿健康。
It's important to brush your teeth properly to remove plaque and prevent cavities.
认真刷牙可以去除牙菌斑，防止蛀牙。
Don't forget to brush your teeth before bed to keep your breath fresh.
别忘了睡前刷牙，保持口气清新。