Terragraph
地面立体测图仪
🗣️ 情景例句
If you had your choice of all the places in the world.
假如你可以选择世界上的任何地方。
When a dog is drowning everyone offers him drink.
落井下石。
America, Russia and Europe are filled with enthusiasts----
美国、俄罗斯和欧洲都有许多热心此项事业的人