Kreotoxin
肉毒素, (细菌产生的)肉尸碱
🗣️ 情景例句
All I need is some paint and a canvas, and I'm happy.
我只想要一些颜料和画布，这样我就会很满足。
We have a toll-free number for customers to call.
我们对顾客提供免费服务电话。
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。