kindly
1.kindly用作形容词和kind没有绝对的区别，但下面几点该注意：
（1）下面各句都是常用的客气话，不可把kind改作kindly：
- It is kind of you to come.
- You are kind to come.
- Will you be kind enough to come?
- Will you be so kind as to come?
- Please give your brother my kind regards.
（2）kind比kindly语气重，说“对…和善（或仁慈）”该说kind to...，不说kindly to...。例如：He is kind to all he knows. We all ought to be kind to one another. 和Be kind to animals.
（3）kind着重在本质，有“宅心忠厚”的意思，kindly着重在倾向、行为或容貌，有“和蔼可亲”的意思。a severe but kind teacher是“一个严格而忠厚的教师”，a severe but kindly teacher是“一个严格而和蔼的教师”。a kind act是“一个表示仁爱的行为”，a kindly act是“一个与人方便的行为”。kind criticism是“出于善意的批评”，kindly criticism是（出于善意而且）和风细雨般的批评。
2.Please kindly call again等表达方式最好避免，可以改作Please call again或Kindly call again。Kindly call again等句往往含有“你还是…的好，别违背我的话啊！”的意思，外表虽然客气，实际有命令性质。
3.kindly requested to...（不定式）有时在商业文件里见到。例如：You are kindly requested to keep the receipt. 实际是错误的，因为该说对方的动作kindly，不该说自己的请求kindly。You are requested to be so kind as to keep the receipt当然不错，但不很自然，还是用原句而把kindly删去的好。
但下面两句里的kindly是合乎习惯的：
- We thank you kindly for your help.
- I should take it kindly of you if you would tell me whether I might call on you tomorrow evening.
