Perfect fluid
[化] 理想流体; 完全流体
🧩 词语组成解析
🗣️ 情景例句
and they found it to be too easy--
他们发现字太简单了，
She contributed a lot of good ideas to the discussion.
她在这次讨论中提出很多好的意见。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。