Some university students choose to take difficult classes even if they know they might not get a good grade in the class. Other students prefer to take easier classes in which they know they will get a good grade. Which do you prefer? Explain why.
vt. 欣赏；感激；领会；鉴别 （appreciate的第三人称单数）
They don't have any confidence that houses will appreciate in value.(TPO49-20)