Naphthopicric acid
[化] 萘苦酸; 2,4,5-三硝基萘酚
🧩 词语组成解析
🗣️ 情景例句
Yes, there is.
有，有心事
I did work this afternoon.
我今天下午工作。
They had to edge their way along this, sometimes wading across shallow streams, or swimming across deep pools.
他们不得不侧着身子往前走，有时过浅溪，有时游过深潭。