Prototergite
前腹背板
🗣️ 情景例句
Eating salad is good for your health.
多吃色拉（蔬菜）对你的健康有益。
The students tumbled over each other as they got off the bus.
学生们下车的时候，由于拥挤一个叠一个的摔倒了。
And now I'm telling you I can't manage this Friday.
我正要告诉你我星期五没办法（出来）。