Who wrote it
是谁写的
🧩 词语组成解析
who
[hu]
pron. 谁;什么人;关系代词，有先行词;孰;
wrote
[rəut]
v. 写( write的过去式 );写信;
it
[ɪt]
pron. 它;他;正好是所需的;事实[情况];
n. <美俚>傻瓜，笨蛋;<俚>绝妙的人;理想的东西;登峰造极;
🗣️ 情景例句
What are you working on?
你在做什么？
Good to see you too, I think.
幸会……，大概。
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。