1、attack
攻擊；進攻
Fifty civilians in Masawa were killed when government planes attacked the town.
馬薩瓦市遭到政府軍飛機轟炸，有50名平民喪生。
He bundled the old lady into her hallway and brutally attacked her.
他將老婦人推到她家走廊上，并對她一頓暴打。
抨擊;強烈指責;非難
He publicly attacked the people who've been calling for secret ballot nominations.
他公開抨擊了那些主張用不記名投票方式確定任命人選的人。
A newspaper ran an editorial attacking him for being a showman.
一家報紙發表社論，批評他善于作秀。
（疾病、化學藥品、昆蟲等）攻擊，侵蝕，破壞
The virus seems to have attacked his throat.
病毒看來已經侵蝕到他喉部了。
Several key crops failed when they were attacked by pests.
一些主要農作物由于遭受蟲害而歉收。
2、effective
有效的;能產生預期效果的
The project looks at how we could be more effective in encouraging students to enter teacher training.
該項目著眼于我們如何能夠更加有效地鼓勵學生參與教師培訓。
Simple antibiotics are effective against this organism.
一般的抗生素能夠有效對抗這種微生物。
實際的;事實上的
They have had effective control of the area since the security forces left.
自從安全部隊撤離后，他們實際上控制了該地區。
a restructuring that would have resulted in an effective increase on one of their most popular excursion fares.
原本會使他們最熱門的一條短途旅游線路的費用出現實質性上漲的調整