Please let us know about the change of your class schedule at least one day earlier .

请至少提前一天告诉我们您的出差计划，以便我们为您作最好的安排。

youdao

Please let us know about the change of your class schedule at least one day earlier .

请至少提前一天告诉我们您的出差计划，以便我们为您作最好的安排。

youdao