Methylxanthines
(methylxanthine 的第三人称 -s形式) [医] 甲基黄嘌呤, 杂黄嘌呤
🗣️ 情景例句
Stay ... stay.
再待一会儿……再一会儿。
A little learning is a dangerous thing.
浅学误人。
Don't worry! said Ah Fang.We're safe. Don't be afraid. Let's go for a walk.
“不用担心！”阿芳说，“我们很安全。别害怕，我们去散散步吧。”