lexical symbol

例句：

1. 1. The lexical symbol for the word "apple" is /æp/ in English and /aːp/ in Mandarin.
   英语单词“apple”的词汇符号是/æp/在英语中和/aːp/在汉语普通话中。
2. 2. In computer science, a lexical symbol is a unique code that represents a word or phrase.
   在计算机科学中，词汇符号是一个独特的代码，代表一个单词或短语。
3. 3. The lexical symbols of words are crucial for understanding their meanings.
   词汇符号对于理解单词的意思至关重要。