34. A happy discovery - 普特英语新概念三 New words and expression 生词和短语l crockery krk()r l n. 陶器；瓦器；土器l pretentious prtens l adj. 自命不凡的；炫耀的；做作的l dagger /d/=knife, stiletto l labyrinth /lbrn/ l musty mst exertl He exerted considerable influence on the thinking of the scientific community on these issues. 他极大地影响了科学界对这些问题的看法。l Youngsters get so absorbed that they dont realise how much theyre exerting themselves. l 年轻人如此地沉浸其中，他们没有意识到自己有多么努力。l Do not exert yourself unnecessarily. 不要做无谓的努力。l Exert your author
