重點講解：
1. come down to (問題、決定等)歸結為；
例句：It comes down to this: the man is a cheat.
事實是這樣：那人是個騙子Va%SF,g9)jtp4]ctf。
2. on average 基本上；大體上；
例句：On average, we use only 15 percent of our lung capacity, even during strenuous exercise.
一般情況下，人們即使劇烈運動也只用到15%的肺活量oS]34KBUf)iytTK[.5。
3. cancel out 抵消；
例句：He wonders if the different influences might not cancel each other out.
他在想,各種影響能不能相互抵消G&4,WHXRw4HdInY#Df。
4. fit the bill 適合需要；符合要求；
例句：On paper, several of the applicants fit the bill.
從書面材料看，有幾位申請人符合條件l&8[@(-m[^00v。
5. in terms of 在…方面；從…角度看；根據…來說；
例句：They have got all their ducks in a row in terms of how the company should be structured.
在應如何整合公司方面，他們已一切安排妥當w9.%]y=pm)_bGj。
6. screen out 篩選出；
例句：Unsuitable candidates were screened out.
那些不合格的候選人被篩選掉了v6tBY_N*_x,lqm*XdRn9。