Dioxopurine
黄嘌呤
🗣️ 情景例句
Second, we have to make an effort to encourage American companies to do business in our country.
第二，我们必须鼓励美国公司在我国开展业务。
He has a strong accent.
他口音很重。
Some time ago, and interesting discovery was made by archaeologists on the Aegean island of Kea.
不久之前，在爱琴海的基亚岛上，考古工作者有一项有趣的发现。