Seronine
[化] 血清素
🗣️ 情景例句
I don't know how to solve the problem. Will you help me out?
我不知道该怎么解决这个问题。你能帮我吗？
What was the weather like yesterday?
象昨天一样的天气？
They stared at the huge tiger with awe.
他们敬畏地看着那头巨虎。