Polygonation
利用导线来测量土地
🗣️ 情景例句
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
He was renowned as a portrait painter.
他以肖像画家著名。
When he woke up, his hands and feet had already been tied together.
当他醒过来的时候，他的手脚已经被捆起来了。