Chelerythrine
白屈菜赤碱
🗣️ 情景例句
The little boy held his mother's hand firmly when crossing the street.
那小男孩过马路时紧抓着母亲的手。
I was 10 minutes late.
我迟到了五分钟。
'Well, I'd prefer to stay here,' I said.
“可我更愿意呆在这儿，”我说，