Catecholamin
[化] 儿茶酚胺
🗣️ 情景例句
Will you excuse me?
我失陪了
How did you get so dirty?
你为什么弄得这么脏？
He wants to ride the machine like a bike and fly it like a plane.
他想让机器可以像自行车那样骑，可以像飞机那样飞。