Kodaloid
硝酸纤维素
🗣️ 情景例句
And good luck! I've got to go.
祝你好运 我得走了。
Labour is lihgt where love doth pay.
爱情付报酬，劳苦也轻松。
Thanks very much. Granny, the hospital is not very near.
非常感谢。老大娘，这家医院有点远。