Perchloric
a. [化](含)高氯的
??? 情景例句
Would you like to be friends?
我們做朋友好嗎？
Can you help me out? I'm trying to find a post office.
你能幫我個忙嗎？我想找個郵局。
I'm planning to do a special study of satellites next term.
我計劃下學期就衛星的問題做些特別的研究。