Double-expansion engine
[机] 两级膨胀动力机
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
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
Great. I believe you must care for his educations.
太好了。我相信你肯定很关心他的教育吧。
That house is for sale. It has central heating.
此房出售，房子里有供暖设备。
Thank you very much.
非常感谢。