主题句：I'll take a rain check. 我想改天吧。
rain check愿意是说棒球等露天赛事因雨改期再赛时作为入场券的原票票根。现在引申为被邀方一时不能应邀时，希望对方下次再邀的请求。
SENCE 1
A： Let's go swimming at Dameisha this weekend. 这个周末我们一起去大梅沙游泳吧。
B： That sounds lovely. But some of my old friends from Shanghai will visit me. I'll take a rain check for some other time. 听起来不错，但几个在上海的老朋友要来看我，咱们改天再约时间吧。
SCENE 2
A： I'd like to invite you and your wife to get a foot massage with us tonight. 我想邀请你和你太太今晚去洗脚。
B： That sounds special, but we're all very busy. We'll take a rain check. 听起来很特别，但我们太忙，咱们改天吧。
SCENE 3
A： I'm going to learn how to drive tomorrow. Would you like to learn with me？ 我准备明年去学开车，你想不想和我一起去学？
B： I wish I could, but tomorrow I have a #puter exam. I'll take a rain check. 我真想去，但明天我要参加电脑考试，改天再说吧。
SCENE 4
A： Let's go to the health club. 我们去健身房吧。
B： I'd like to go to the healthclub room with you, but my child has piano lesson this evening. I'll take a rain check. 我很想和你一起去健身房，可我的孩子今晚要学钢琴，所以改天吧。
SCENE 5
A： Let's go to the mall. 我们去购物中心。
B： I'm not available now. Can I have a rain check？ 我现在没空，可以改天吗？
