Trichechus
n. 海牛\\n
🗣️ 情景例句
You'll need to hurry up, or you'll miss the train.
你得快点，否则赶不上火车。
Children learn to creep ere they can go.
孩子要走路，先得学爬行。
Nigel is our new next-door neighbour.He's a pilot.
奈杰尔是我们新搬来的隔壁邻居。他是个飞行员。