Swertiamarin
[化] 獐牙菜毒苷
🗣️ 情景例句
I need some help.
我需要帮助。
The mother's heart is the child's schoolroom.
母亲的心肠是孩子的课堂。
If we remain inveterate smokers, it is only because we have so often experienced the frustration that results from failure.
如果我们烟瘾大，戒不掉，那是因为屡戒屡败，失去信心。