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's a big one!
真大哟！
I don't know how to do that.
我不知道该怎么打。
After entering the narrow gap on the plateau, they climbed down the steep sides of the cave until they came to narrow corridor.
他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。来到一条狭窄的走廊上。