M-phenylenediamine
[化] 间苯二胺
🧩 词语组成解析
苯二胺
🗣️ 情景例句
You may be right.
也许你说的对。
Mr. Smith is still in his forties.
史密斯先生才四十几岁。
No one noticed the boy as he crept off.
当男孩从船里爬出来时，谁也没有发现他。