洗牙需要预约做两次。我要看一下X光的结果，然后决定你下一次预约时的治疗计划。

You'll need two appointments for your cleaning. I'll review the X-rays and decide upon a treatment plan for your next appointment.

youdao

然后，你应该坚持做眼保健操，一天两次。

Then you should insist doing eyes exercises twice a day.

youdao

然后每天要坚持做两次眼保健操。

Then you should insist doing eyes exercises twice a day.

youdao

然后每天要坚持做两次眼保健操。

Then you should insist doing eyes exercises twice a day.

youdao