Propulsion system
推进系统，动力装置
🧩 词语组成解析
🗣️ 情景例句
I've been looking forward to meeting you.
我一直盼望能有幸认识你。
Give every man thine ear, but few thy voice.
要多听少说。
It took great imagination as well as patience for Annie to teach me to speak.
教我说话需要极大的想像力和耐心。