venalstonine

例句：

1. 1. The venalstonine was a rare and valuable substance.
   这种物质是一种稀有且有价值的物质。
2. 2. The venalstonine had been discovered in the remote region of the Amazon.
   这种物质在亚马逊的偏远地区被发现。
3. 3. The venalstonine has significant implications for human health.
   这种物质对人类健康有重要影响。