Spermine
n. 精素\\n[化] 精胺; 精素
🗣️ 情景例句
and wait for the final results.
等待最后的结果。
Do now waste them, but use them while they are fresh.
不要浪费了这些，要趁未落伍时善加利用。
We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
我们要十分感谢那些吃昆虫的鸟和兽，然而把它们所杀死的昆虫全部加在一起也只相当于蜘蛛所消灭的一小部分。