1.
Research on Steganography in JPEG Images;
JPEG图像中数字密写技术的研究
2.
Research and realization of steganography based on HVS and DWT
HVS和DWT相结合的数字密写技术研究与实现
3.
Use strong passwords that combine upper- and lowercase letters, numbers, and symbols.
使用同时包含大小写字母、数字和符号的强密码。
4.
To improve the security of a password, it should contain at least two of these elements: uppercase letters, lowercase letters, and numbers.
要提高密码的安全性，密码应该含有以下这些成分的两个: 大写字母、小写字母和数字。
5.
Your password must be at least six characters and may contain numbers, uppercase and lowercase letters, and standard symbols.
密码至少包含六位字符，并且可以含有数字、大小写字母和标准符号。
6.
Steganography in Digital Speech and High Fidelity Audio Signals;
数字语音和高保真音频信号中的安全密写
7.
handwritten alpha-numeric character
手写字母－数字字符
8.
Your password must be at least seven characters long and contain a combination of uppercase and lowercase letters, numerals or punctuation.
密码的长度必须至少为7个字符长，并且同时包含大小写字母、数字或标点。
9.
Your password must be at least seven characters long and contain a combination of uppercase and lowercase letters, numerals or punctuation.\0
密码的长度必须至少为7个字符长，并且同时包含大小写字母、数字或标点。\0
10.
Passwords are case-sensitive, so note which letters you capitalize.
密码要区分大小写，要注意大写的字母。
11.
"In Morse and similar codes, the long sound or signal used in combination with the dot and silent intervals to represent letters or numbers."
"在莫尔斯电码和类似的密码中,长音或信号用在写点和无声的间隔中来代表字母或数字."
12.
You can write dates with numbers, too.
你也可以用数字写日期。
13.
The figures be set out in the table at the back of the book .
数字写在背后的表中。
14.
Write the number words on the lines.
在横线上写出数字。
15.
1. How many birds are there?
一、Listen and write. (听音，写出数字。)
16.
Most people write with their right hands.
多数人用右手写字。
17.
scribbling(figures)on an envelope
在信封上乱写（数字）.
18.
Small letters as well as capital letters in printed or displayed data.
打印数据或显示数据中的小写字母及大写字母。