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 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 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。