Lemnalactone
八氢三甲基萘并呋喃酮
🗣️ 情景例句
I would like to lodge a complaint.
我有些怨言。
She was flattered by their praise.
他们的称赞使她受宠若惊。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。