Piston engine
[机] 活塞动力机
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
engine
['endʒin]
n. 发动机，引擎;工具;火车头;机车;
vt. 给…安装发动机;
🗣️ 情景例句
My niece is getting married,
我侄女即将结婚，
Newspapers keep us in contact with the events of the world.
报纸是巨大的信息来源，互联网也不能取代它的地位。
both on the west coasts of continents with similar climates,
都在各自大陆的西海岸，