Perhydrocyclopentanophenanthrene
环戊烷多氢菲
🗣️ 情景例句
Would you please hand me your customs declaration form?
请出示您的申报表给我？
I'm going to buy six inches.
我要买六英寸。
He had been there for nearly ten hours.
他已经在烟囱里被困了将近10个小时。