Aerosimplex
简单投影测图仪, 航空摄测图仪
🗣️ 情景例句
She is a particular friend of mine.
她是我特殊的朋友。
Don't leave.
不要离开。
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。