Telecraft
遥控飞行器
🗣️ 情景例句
Hi. Michelle,
嗨， Michelle，
My cousin is a member of a stamp club, He seems stamp collecting.
我的表兄是一个集邮俱乐部成员，他似乎很喜欢集邮。
The first records the arrival of longitudinal vibrations.
首先记录下的是纵向波的到达；