Vacuum test
[化] 真空检验
🧩 词语组成解析
🗣️ 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜欢听音乐、弹钢琴，有时候去游泳。
I'm calling to say goodbye.
我大电话向你告别来了。
He wants to ride the machine like a bike and fly it like a plane.
他想让机器可以像自行车那样骑，可以像飞机那样飞。