Bookends
n. 擋書板；書夾；書擋（bookend的復(fù)數(shù)形式）
??? 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是無論怎樣都確有其價(jià)值。
Don't be a copycat!
別有樣學(xué)樣。
If you don't work, you will fail to pass the exam.
如果你不學(xué)習(xí)，你考試就會不及格。