261. Statistical evidence lends support to the view that a massive influx of funding is needed to strengthen crime prevention programs .
統計數據證明加強防止犯罪的工作需要大量資金投入。

262. Personal experience has taught that kindness to others pays untold dividends .
個人經驗告訴我：和善地對待別人會得到數不清的好處。

263. Case histories show that all nations face recurring periods of economic fluctuations .
案例記錄表明：所有國家都面臨循環出現的經濟波動期。

264. Personal experience leads me to conclude that all people need to take time to smell the roses ( evaluate and appreciate the many good things they have in their lives ) .
個人經驗使我得出這樣的結論：所有人都需要有時間放松（評價并欣賞他們生活中許多美好的事物）。

265. Recent studies conducted by doctors show that excessive exposure to the sun's rays causes skin cancer .
最近醫生所做的研究表明：過度暴露在陽光下會致癌。

266. Nationwide surveys conducted in 1997 revealed a dramatic rise in the ownership of television sets , refrigerators , air conditioners and washing machines .
1997年所做的全國范圍內的調查顯示電視機、電冰箱、空調和洗衣機擁有量大幅升高。

267. History tells us that mankind has a tendency to repeat past mistakes .
歷史告訴我們人類有重蹈覆轍的趨勢。

268. We have amassed ample objective proof to show the urgent need for crisis intervention in suspected child abuse cases .
我們已經積累了充足的客觀證據證明急需干涉可疑的虐待兒童的案件。

269. Unfortunately , available evidence fails to establish any direct link between smoking and cancer .
不幸的是，現有的證據不能證明抽煙和癌癥之間有直接的聯系。

270. Fortunately , mountains of reliable evidence proves the direct link between smoking and cancer beyond any shadow of the doubt .
慶幸的是，大量可靠的證據證明抽煙和癌癥有直接聯系是毫無疑問的。

271. Television violence has contributed directly to rising crime , as evidenced by statistics showing a dramatic rise in copycat crimes .
數據顯示模仿的犯罪行為有大幅度的增加，這證明電視暴力是犯罪增加的一部分直接原因。

272. The introduction of adcance agronomic techniques has contributed greatly to the development of agriculture , as indicated by statistics showing increased output in each of the past five years .
數據顯示在過去的五年中，每一年的產量都有提高，這表明發達的農業技術的引入對農業發展起到了很大的作用。

273. While it may appear that the gap between rich and poor people is narrowing somewhat , recently released evidence suggests that the opposite is true .
貧富之間的差距看似有一定的縮小，但是最近發布的證據表明事實正好相反。

274. While attaining world peace remains within the realm of possibility , the prevailing trend revolves around regional conflicts and internal strife in many countries .
獲得世界和平是有可能的，但是普遍的趨勢是存在地區沖突和許多國家內部的斗爭。

275. Although statistics are quite often far less reliable than one might wish , other reliable information allows one to closely approximate industrial output figures .
盡管數據經常比人們希望的不可靠得多，但是，其他可靠的信息使人們能得到接近工業產量的數字。

276. Although random sampling used for many surveys fails to cover large segments of the population , the procedure nonetheless offers insight into voting and consumption patterns .
雖然許多調查所用的隨機取樣不能覆蓋大部分人口，但是這一過程使人們能更深刻地理解選舉和消費的模式。

277. The need for more government services has proved to be the case time and again .
事實多次證明需要更多的政府服務工作。

278. The funny thing about marriage is that the newness soon wears off .
婚姻的一個可笑之處是新鮮感馬上就沒有了。

279. There are instances when one must abandon the tendency for self-prevention in order to assist a person in grave danger .
存在這樣的情況：為了幫助處于嚴重危險中的人，一個人必需拋棄自保的傾向。

280. There are situations in which it's highly advisable for a person to control his/her temper and keep his/her mouth shut .
有些情況下，一個人控制住自己的脾氣并保持沉默是明智的。