Phenothiazinyl
吩噻嗪基
🗣️ 情景例句
He is an impressive man.
他是一个令人难以忘怀的人。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
I am ready to sign the agreement.
我已经准备好了签合同。