Naphthalene nucleus
[化] 萘环
🧩 词语组成解析
[化] 萘\\n[医] 萘
🗣️ 情景例句
Hi.
嗨。
Don't trouble trouble until trouble troubles you.
不要自寻烦恼。
With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.
随着书写的发明，又迈进了一大步，因为这样一来，知识不仅能交流，而且能储存了。