Betain
n. [化]甜菜碱, 三甲铵乙内酯
🗣️ 情景例句
Pull the car over to the side of the road.
把车停到路边。
That sounds good. Let's get something at the hotel restaurant. I feel a little tired.
那太棒了，我们就到旅馆餐厅吃点东西，我有点累了。
What are you doing?
你在干什么？