Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码,这些瓶子可免费保存两个月。
Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic.
蝰蛇(蝮蛇)和响尾蛇产生血液毒素,称为溶血性毒液。