1、Distome is a type of parasitic flatworm that belongs to the class Trematoda.
双吸虫是一种属于颚吸虫纲的寄生扁虫。

2、The distome attaches itself to the host organism and feeds on its blood or tissues.
双吸虫会附着在寄主生物上并以其血液或组织为食。