Alloxanthine
别黄嘌呤
🗣️ 情景例句
We prefer to have payment in US dollars. It may be difficult for us to do so.
我们用美元付款。用人民币支付可能有些困难。
The best fish smell when they are three days old.
鱼过三天后，再鲜也变臭。
Hello, Jim! Did you have a good time at the cinema?
你好，吉姆！你在电影院过得很开心吧？