Please make sure you arrive on time. 要保证准时到达。
Please remember to finish the proposal by Friday. 请记住周五前要完成提案。
I'd like to remind you that yesterday's meeting was rescheduled for 4 o'clock today. 我想提醒您昨天的会议改到今天4点了。
Don't forget to book the tickets a few days in advance. 别忘了提前几天订票。
You'll remember to keep your promise, right? 您会记得您的承诺,是吧?