Chelerythrine
白屈菜赤碱
🗣️ 情景例句
We're going to take it slow first.
开头我们要做慢一点。
He who hesitates is lost.
举棋不定，坐失良机。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-