Echinenone
海胆酮, β-胡萝卜素-4-酮
🗣️ 情景例句
T-O-P-S--means Talented Older People's Society. T-O-P-S
全名是优秀老人协会。
Where were you yesterday afternoon?
你昨天下午在哪儿？
He's a terrible man when he's angry.
他生气的时候很可怕。