Selenium tetrafluoride
[化] 四氟化硒
🧩 词语组成解析
selenium
[[si'li:njəm]]
n. 硒\\n[化] 硒Se
n. [化]四氟化物
🗣️ 情景例句
It's good for every day. It will be good for school, Michelle.
这套衣服每天都可以穿。它适合上学时穿， Michelle。
It's a matter of life and death.
事关生死。
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。