Hydrogen cycle
[机] 氢循环
🧩 词语组成解析
cycle
['saɪkl]
n. 循环，周期;自行车;时代，一段时间;整套;
vi. 周而复始，循环;骑自行车;轮转;
vt. 运转，循环;使轮转;
cycl =ring,circle,表示”圆,环”
🗣️ 情景例句
Try to think in English whenever possible.
尽可能用英文思维。
Don't count your chicken before they are hatched.
不要过早乐观。
I stayed at home!
我呆在这里了！