Dithiodipyridine
[化] 二硫基二吡啶
🗣️ 情景例句
Hi.
嗨。
How much for a one-way ticket to shanghai?
去上海的单程票多少钱？
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，