Livetin
卵黄蛋白, 蛋黄球朊
🗣️ 情景例句
Could you tell me what's in this?
您能告诉我这里面是什么吗？
If I had known that, I could have helped you.
假如我早知道，我就能帮你了。
When he was decorating his house, he had gotten the bedroom painted first.
他装修房子时，先刷了卧室。