克劳迪亚斯在罗马字母表上加上了3个字母，并且他还宣布了著名的关于放屁打嗝的法令。

Claudius did however attempt to add three letters to the roman alphabet and he did set forth the famous decree on farts and belches.

她在雪地上踩出了“SOS”这3个字母。

She stamped out the letters 'SOS'in the snow.

的中间3个字母在单词put中。我是什么？

Middle 3 letters are in the word'put'. What am I?

它为我们分配内存地址,它为用户输入的3个字母单词,分配地址。

Its name is malloc for memory allocation and what malloc does for us is we say, hmm, the user has typed in a three-letter word.