Cerium oxide
[機(jī)] 二氧化鈰
?? 詞語組成解析
n. 鈰\\n[化] 鈰Ce
oxide
['ɑksa?d]
n. [化]氧化物;
??? 情景例句
Kids today have too much freedom, it's not like the old days.
現(xiàn)在的小孩太自由了，不像以前。
You'll be on air in two minutes.
兩分鐘以后你會(huì)上電視。
What's that, Jim? Is it a picture?
吉姆，那是什么？一張照片？