regular (adj.)
有规律的、定期的

例句：
You should keep regular hours.
你应该正常作息。

burn the candle at both ends
浪费精力、浪费钱财

例句：
You're burning the candle at both ends. A man can not work night and day with impunity.你过分消耗精力了，一个人不可能夜以继日地工作而不生病的。

I appreciate your invitation.
感谢你的邀请

对话：
A: I'd like to invite you to a party tomorrow. Can you make it?
B: Of course. That's wonderful. I appreciate your invitation.

A：我想邀请你参加明天的舞会。你能来吗？
B：当然，那太好了。感谢你的邀请。