🧩 词语组成解析
n. 犬齿龙附目；犬齿兽次亚目\\n
🗣️ 情景例句
Grandpa!
爷爷！
Sailboats glided motionlessly across the lake.
帆船静静地像滑动似的在湖上前进。
Who was first? Who was second? Who was third?
谁是第一？谁是第二？谁是第三？