该系统包括毒腺（主腺、初级导管、副腺、次级导管）和毒牙。

The VDS was composed of the main venom gland, the primary duct, the accessory gland, the secondary duct and the fangs.

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该系统包括毒腺（主腺、初级导管、副腺、次级导管）和毒牙。

The VDS was composed of the main venom gland, the primary duct, the accessory gland, the secondary duct and the fangs.

youdao