Vitricin
蔓荆子碱
🗣️ 情景例句
If you can't get a cab, give me a call. It's not safe to walk home along at night.
如果你叫不到出租车的话，打电话给我，晚上一人走回家不安全。
Do not give a dog bread every time he wags his tail.
不要有求必应。
Oh, look! said Ann. What's that? She pointed at one of the things.
“看啊！”安说，“那是什么？”她指着一件展品问。