Aviotronics
航空电子学
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
Don't fly till you wings are feathered.
羽毛未丰不要飞。
I've enjoyed the sports and I've enjoyed learning Chinese.
我喜欢体育，还喜欢学汉语。