Calotropagenin
[化] 牛角瓜配基
??? 情景例句
Please keep two for us to pick up.
請給我保留兩張。
There is nothing to thank me for.
沒有什么可謝我的。
The basic features include a crest (the highest point of the wave),
它們的基本特征包括浪峰（波浪的最高點）