Iva
Ideal Voltage Amplifier理想电压放大器；Inspection Visual Aid 检查用观察用具；Intra-Vehicular Activity （航天飞机）舱内活动
🗣️ 情景例句
OK, just a second.
好了！请稍等一下。
Better good neighbours near than relations far away.
远亲不如近邻。
Good morning. Can I help you?
早上好！我能帮您什么忙吗？