Plant hormone 702
[化] 七二
🧩 词语组成解析
hormone
['hɔ:məun]
n. 荷尔蒙;激素;
🗣️ 情景例句
Who?
谁呀？
How much does the elephant weight?
这个大象有多重？
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。