Anthraciny
蒽化作用
🗣️ 情景例句
It was a pleasant surprise.
那是个惊喜。
The whole carton is packed with double straps, each corner of the carton consolidated with metal angles.
纸箱外加了两道箍，每个箱角都用金属角加固。
Is it your sister, Kate?
是你的妹妹，凯特？