Soluble nitrocellulose
[机] 火棉胶
🧩 词语组成解析
n. 硝化纤维\\n[化] 硝酸纤维素
🗣️ 情景例句
It is generally believed that Chinese are poor public speakers.
一般认为中国人不擅长公众演讲。
Art is long, life is short.
艺术恒久，生命短暂。
It's only three minutes to eight.
现在才7点57分。