O-diphenyleneazine
[化] 苯并噌啉
??? 情景例句
Think about the word and use it, in your mind, in a sentence.
想想這個字，然后去用它，在腦子里，在句子里。
He is lifeless that is faultless.
人孰無過。
Mr.Wang is fixing his bike.
王先生在修他的自行車。