What filmmakers have lacked is believable characters and realistic dialogue .

其实制片人缺乏的是可信的人物和真实的对白。

Text is a simple one-to-one mapping of characters to numbers .

文本就是一个字符对一个数字的简单映射。

Messages can only be 140 characters long .

信息最多只能有140个字母。

Authors need to resist the temptation to add soft-hyphen characters to e-texts .

在电子书文字中作者需要抗拒自行添加软连字符的诱惑。

These special characters are called wildcards .

这些特殊的字符叫做---通配符。