"To" and "From" replace a letter's insideaddress and signature block, for example.
比如,信件上用“致”和“ 来自” 代替了地址和签名部分。
2
The date is always on the upper side of the right, and one line under the heading and one line above the insideaddress.
日期写在信笺的右上端,位于信头下一行,信内地址上一行。
3
The salutation of a letter is the complimentary greeting. It is always placed on the left hand side of the sheet, about half an inch below the insideaddress.