Qui
abbr. 定量超声指数（Quantitative Ultrasound Index）；门控；速度
🗣️ 情景例句
Remember that wonderful little balcony
还记得那个美妙小阳台，
Politeness costs nothing and gains everything.
礼貌不费分文而可赢得一切。
when the plane suddenly turned round and flew back to the airport.
这时飞机突然调转头来，飞回了机场。