信件 letter; mail; missive 打印信件 a form letter; 商业信件 business letter; 发出的信件 an outgoing letter; 友好的信件 a friendly letter; 他每天有大量的信件要回复。 he has a large amount of mail to answer every day
Microdots are generally concealed under stamps, on top of punctuation marks in typewritten letters, or under the lips of envelopes . 缩微点一般隐藏在邮票下面、打印信件的标点符号上边或者信封的折口内。
This job is handling routine tasks , such as typing letters and documents , receiving visitors , answering phone calls and so on 这项工作要处理日常常规工作,如打印信件和文件、接待来客、接电话等等。