求翻译：我们周六上班的，一般情况我们都是提前一周预约，如果可以请提前一周预约，谢谢！检查一般15分钟，洗牙一般半个小时到45分钟，美白的话一般准备2个小时是什么意思？

We work on Saturday, in general, we are one week in advance booking, if you can please make an appointment one week in advance, thank you! Check the general for 15 minutes, half an hour to 45 minutes usually scaling, whitening, then the general preparation 2 hours

6 week of work, we have a general situation we are all one week in advance, if you can make an appointment to make an appointment one week in advance, thank you! Check the general 15 minutes, wash her teeth in general for half an hour to 45 minutes, the US white, then general preparation for 2 hours

We go to work on Saturday, the ordinary circumstances we all are ahead of time a week appointment, if may please ahead of time a week appointment, thank! Inspects the general 15 minutes, cleans the teeth the general half hour to 45 minutes, the beautiful white speech prepares generally for 2 hours

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We go to work on Saturday, we make an appointment in one week ahead of time in general situation, if can please make an appointment in one week ahead of time, thanks! Generally check for 15 minutes, wash the tooth generally from half an hour to 45 minutes, whitened is generally prepared for 2 hours