USAGE NOTE 用法说明: please and 和 thank you
Use please when you are asking for something or asking someone to do something. 要东西或请求别人做事时用 please:
Please would you let me in. 请你让我进去好吗？
Will you put the milk in the fridge, please? 请你把牛奶放进冰箱行吗？
Could I speak to Alice, please? 请叫爱莉丝听电话好吗？
'Yes please' is used to say 'yes' politely. Yes, please 是表示同意的礼貌用法:
"Would you like more coffee?" "Yes, please." “你想再来些咖啡吗？”“好的，谢谢。”
Use thank you when someone gives you something, or does or says something that is polite or kind. 当某人给你某物或做了、说了有礼貌或善意的事或话时，可用 thank you:
"Here's your coat." "Thank you." “你的外套。”“谢谢。”
Thank you for watering my plants. 谢谢你给我的植物浇水。
"You look nice today." "Thank you." “今天你看上去气色不错。”“谢谢。”
'No thank you' is used to say 'no' politely. No thank you 是“不”的礼貌说法:
"Would you like more coffee?" "No, thank you." “你想再来点咖啡吗？”“不要了，谢谢。”
If someone gives you a present or does something special for you, it is polite to thank them in a stronger way. 如果某人送你礼物或为你做了特别的事，以较强的语气表示谢意才显得礼貌:
Thank you very much. That's very kind of you. 非常感谢，你真的太好了。
In informal situations you can say 在不太正式的场合下你可以说:
Thanks a lot. 十分多谢。
That's really nice of you. 你真好。