She won a Nobel Prize for her scientific ______.
My visit to your school is really an unforgettable experience, I will always treasure.
—Did you look up the time of the high-speed trains to Shanghai? —Yes, the early train is to leave at 5:30 a.m.
Doctors strongly recommended that my father more exercise regularly instead of sitting still before a computer all day long.
The more one is _______ the English-speaking environment, the better he or she will learn the language.
—I’m afraid I can’t finish the book within this week. —Don’t worry. .