Dioxopurine
黄嘌呤
🗣️ 情景例句
Let's finish eating,
我们赶紧吃完。
We should let him face the music.
我们应该让他对自己所做的事负责任。
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。