Phosphurane
磷杂环戊二烯
🗣️ 情景例句
All right. Please hold two orchestra seats for us.
好，请帮我们保留两张前排的座位。
One father is more than a hundred schoolmasters.
一个父亲胜于一百个教师。
After they had entered the house, they went into the dining room.
他们进到屋里后，走进了饭厅。