Xanthene
n. [化] (夹)氧杂蒽
🗣️ 情景例句
and when I'm ready to go back,
而当我准备好要回去时，
Please do now hesitate to as any questions.
如有问题您可随时提出来。
No. Where's Jim? asked Ann.
“没有。吉姆在哪儿？”安问。