Echinenone
海膽酮, β-胡蘿卜素-4-酮
??? 情景例句
Good-bye. Take care of yourself.
多多保重，再見。
I'm afraid you will be disappointed.
我怕你會失望。
Fine. I'll start the paperwork for your order right away.
好啊，那我立刻就為你們的訂單作準備了。