Kodaloid
硝酸纤维素
🗣️ 情景例句
I researched it for over a year.
我研究了一年多。
Why are you so excited?
你干嘛那么激动？
One of the most famous sailing ships of the nineteenth century, the Cutty Sark, can still be seen at Greewich.
人们在格林威治仍可看到19世纪最有名的帆船之一“卡蒂萨克”号。