Euphorbin
大戟素
🗣️ 情景例句
She's doing fine, thank you.
她很好，谢谢你。
The window-washer has a dangerous job.
玻璃清洁工担负着危险的工作。
You are John Smith, the engineer,aren't you?
你是工程师约翰。史密斯，对吗？