Regenerative system
[机] 蓄热系统
🧩 词语组成解析
🗣️ 情景例句
I had never been there before.
我以前从来没有去过那里 。
He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的阅读和写作是强项，但他希望知道怎样去理解和说得更好。
sometimes as much as twelve feet in length.
有时长达12英尺。