The first part of the alimentary canal of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard.是什么意思_The first part of the alimentary canal of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard.在线翻译_英语_读音_用法_例句