Clarkeite
水鈉鈾礦
??? 情景例句
Get this place picked up immediately. do you read me?
馬上把這里收拾干凈，聽明白沒有？
Last year, he applied to Harvard University for a scholarship and succeeded in passing a difficult examination.
去年，他向哈佛大學(xué)申請獎學(xué)金并通過了一個很難的考試。
I have some difficulty in pronouncing some of the words in English.
我有些英語單詞發(fā)音不好。