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
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
Would you please tell me the exchange rate for pound sterling into RMB?
请你告诉我英镑兑换人民币的汇率是多少，好吗？
Yes. I was a little ill.
是的，我有点不舒服。