add是address的缩写，addr是abbreviation的缩写。
address 英[əˈdres] 美[ˈædres]
n. 地址; 称呼; 演说; 通信处;
v. 称呼; 演说; 写姓名地址; 向…说话;
词组
1.ip address 网络地址，IP地址
2.address book 通讯簿；住址名册
3.home address 家庭住址；标识地址；内部地址
4.mailing address 邮寄地址
造句
1.Please forward my mail to my new address.
本人已迁居，来信请转新址。
2.Send the letter to my business address.
请把这封信寄交我的办公地址。
3.I now call upon the chairman to address the meeting.
现在请主席致辞。
4.Please send my letter on to my new address.
请把我的信送往新址。
5.The petitions were addressed to the governor.
请愿的对象是州长。
abbreviation 英[əˌbri:viˈeɪʃn] 美[əˌbriviˈeʃən]
n. 省略，缩写，简化，缩写词，略语; [数学] 约分; [音乐] 略号;
词组
1.recognized abbreviation 公认的缩略词
2.chart abbreviation 海图缩写
3.Abbreviation convention 缩写约定
4.abbreviation key 缩写符号键
5.abbreviation codes 缩写代码
造句
1.Isn't that the abbreviation for manuscript?
这不是手稿一词的缩写吗？
2.Don't let dictionary abbreviations put you off.
切勿让字典的略语难住你。
3.Certain abbreviations are tolerated.
可作某些简化。
4.They used abbreviations of words and a few symbols to describe operations.
他们用缩写文字和一些记号来描述运算。
5."ms." uses the period without being an abbreviation for anything.
“Ms”虽然后面有一点，却不是任何词的缩写。
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