Piston expander
[化] 活塞式膨胀机
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
expander
[ɪk'spændə]
n. 使增大者，使身体健壮的强身器具;
🗣️ 情景例句
is tomorrow morning at ten o'clock.
明天早上十点。
The doctor advised me to drink plenty of water.
医生劝我要多喝水。
What's in the box? Ann thought. Was it some clothes?
“盒子里是啥呢？”安心想，会是衣服吗？