Hecogenin
n. [化]龙舌蓝皂苷配基
🗣️ 情景例句
but, unfortunately,
但是， 很不幸，
I'm on my way.
我这就上路。
As Fred was going in the same direction, he walked along with the tourist.
因为游客与弗雷德走的是同一个方向，他便与游客一道同行。