Xanthopterin
黄蝶呤, 2-氨基-4, 6-二羟基蝶呤
🗣️ 情景例句
Is there any chance of stopping them?
有没有可能阻止他们？
The telepnone is out of order.
这电话出毛病了。
I would like to wash the clothes for you.
我愿意帮你洗这些衣服。