Lanthanum oxide
[化] 氧化镧; 三氧化二镧
🧩 词语组成解析
n. 镧\\n[化] 镧La
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
Good morning.
早安。
How long have you had it?
你得这病多久了？
Some of the things were hundreds of years old.
展出的一些东西已有数百年的历史了。