助字喺訓讀文（ ，加咗訓點嘅漢文）中有讀音。而虛字（ ）喺訓讀文中冇讀音，睇嘅時候要跳過，因此虛字下唔會出現返點。喺訓讀體（ ）中，虛字一定唔用漢字嚟寫，助字一般唔用漢字寫，不過都有例外。
The auxiliary character has a pronunciation in the training text (Chinese with a training point). The imaginary character ( ) has no pronunciation in the prescriptive text, so it should be skipped when reading, so there will be no return point under the imaginary character. In the training style ( ), imaginary characters must not be written in Chinese characters, and auxiliary characters are generally not written in Chinese characters, but there are exceptions.