Definition
At the expected or planned time; neither early nor late.
按时间行事
The project is progressing on schedule, with all milestones being met on time.
该项目正在按计划进行，所有里程碑都按时完成。
We must ensure all departments are working as planned to ensure the product is released on schedule.
我们必须确保所有部门按计划工作，以确保产品按时发布。
Despite some minor setbacks, they still managed to get the event started on schedule.
尽管有一些小挫折，他们仍然设法按计划开始了活动。