Radiogeodesy
無線電大地測量學
??? 情景例句
Well, did you do any fishing?
你們釣了魚嗎？
Yes, he speaks English perfectly.
是,他能流利地說英語。
The trainer stands in front of the elephant holding a long stick with a sharp metal point.
馴練員手持一根有鋒利金屬尖頭的長棒，站在象前。