Petrochemistry
n. 石油化學(xué), 巖石化學(xué)\\n[化] 石油化學(xué)
??? 情景例句
as well as the younger people of Riverdale.
和年輕人服務(wù)。
Men know where they were born, not where they shall die.
人能知其生于何地，不能知其死于何方。
Grandma is ill, she said. I must take her to hospital.
“奶奶病了，”她說，“我必須送她去醫(yī)院。