Physarsterol
粘菌甾醇
🗣️ 情景例句
Don't litter.
请不要乱扔东西。
This man yells directions and gets sunburned.
这个人一边晒着太阳,一边在大声下达指令。
Clusters of tin insects called aphids were to be found on the underside of the leaves.
结果在树叶背面找到成串的叫作蚜虫小虫子。