Lanthanum trioxide
[化] 氧化镧; 三氧化二镧
🧩 词语组成解析
n. 镧\\n[化] 镧La
n. 三氧化物\\n[医] 三氧化物
🗣️ 情景例句
I think you could talk to Mr. Marchetta,
我想你可以跟Marchetta先生谈谈
Sorry to keep you waiting.
抱歉让你久等了。
Man-made satellites have been sent up into space by many countries.
许多国家都成功地把人造卫星送入了太空。