272. The introduction of advance 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(shù)據(jù)顯示在過去的五年中，每一年的產(chǎn)量都有提高，這表明發(fā)達的農(nóng)業(yè)技術(shù)的引入對農(nóng)業(yè)發(fā)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(fā)布的證據(jù)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(qū)沖突和許多國家內(nèi)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(shù)據(jù)經(jīng)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(yè)產(chǎn)量的數(shù)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(diào)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 its 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。

　　272. The introduction of advance 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(shù)據(jù)顯示在過去的五年中，每一年的產(chǎn)量都有提高，這表明發(fā)達的農(nóng)業(yè)技術(shù)的引入對農(nóng)業(yè)發(fā)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(fā)布的證據(jù)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(qū)沖突和許多國家內(nèi)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(shù)據(jù)經(jīng)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(yè)產(chǎn)量的數(shù)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(diào)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 its 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。