Enteramine
血清素, 5-羟色胺
🗣️ 情景例句
We are going upstairs to set up Grandpa's room.
我们要上楼收拾一下爷爷的房间。
Joe felt the lecture wasn't very interesting.
乔感觉演讲一点也不精彩。
Then wait until the fire is out.
然后，等火熄灭。