地球表面的大部分被水所覆蓋。

一小部分街道鋪有下水道。

你必須使你的開支與你的薪水相均衡((量入為出))。

她的頭部與身體大小不成比例.

必須采取措施將問題縮小到可控制的范圍。

【記】portion-部分,proportion-比例:每部分的比例都要均衡

proportion n 1 [C] comparative part or share of a whole; fraction 部分; 份兒; 局部 a large proportion of the earth's surface 地球表面的大部分 The proportion of the population still speaking the dialect is very small. 只有少數居民仍使用這種方言. A fixed proportion of the fund is invested in British firms. 資金中有一固定部分是投資於英國企業的. 2 [U] ~ (of sth to sth) relation of one thing to another in quantity, size, etc; ratio 一物與他物在數量、 大小等方面的關系; 比例; 比 The proportion of imports to exports (ie excess of imports over exports) is worrying the government. 進口與出口的比例（入超）令政府擔憂. the proportion of passes to failures in the final examination 期末考試中及格者與不及格者的比例 What is the proportion of men to women in the population? 人口中男女的比例是多少? 3 [U, C usu pl 作不可數名詞或可數名詞, 後者通常作復數] correct or ideal relation in size, degree, etc between one thing and another or between the parts of a whole 均衡; 勻稱; 協調; 和諧 the classical proportions of the room 這房間的勻稱協調 The two windows are in admirable proportion. 這兩扇窗戶十分相稱. 4 proportions[pl] measurements or dimensions; size 面積; 體積; 規模; 程度; 大小 a ship of impressive proportions 巨大的船 a painting of huge proportions 一幅巨畫. 5 [U] (mathematics 數) relationship between four numbers in which the ratio of the first two equals the ratio of the second two 比例 `4 is to 8 as 6 is to 12' is a statement of proportion. ｀4比8與6比12的比例相等＇是一種有關比例的陳述. 6 (idm 習語) ,in `proportion (a) in the correct relation to other things 相稱; 符合比例 Try to draw the figures in the foreground in proportion. 要把前景中的人物畫得合比例. Her features are in proportion, ie are of the correct size relative to each other. 她五官端正. get/see things in proportion 辦事情[看問題]恰如其分 Try to see the problem in proportion -- it could be far worse. 看問題要恰如其分--事情有可能糟得多. (b) (mathematics 數) having equal ratios 有相同的比值 5/8 and 10/16 are in proportion. 5/8 和 10/16 比值相同. in proportion to sth relative to sth 相對於某事物來說; 與某物成比例 The room is wide in proportion to its height. 這房間就其高度的比例而言是很寬的. Payment will be in proportion to the work done, not to the time spent doing it. 報酬將與工作量成比例, 而不是與花費的時間成比例. ,out of `proportion (to sth) in the wrong relation (to other things) 不相稱; 不成比例 The figures of the horses in the foreground are out of proportion.前景中的馬畫得不成比例. Her head is out of proportion to the size of her body. 她的頭部與身體大小不成比例. out of (all) proportion to sth too large, serious, etc in relation to sth 對某事物來說過大、 過於嚴重等 prices out of all proportion to income 與收入完全脫節的高價 punishment that was out of all proportion to the offence committed 罰不當罪.

pro(之前)+port(=part部分的)+ion(名綴): 前面的部分要注意了，不要太大，否則要失去比例了

*[pr?'p?:??n]n. 比例, 比率, 均衡, 部分, 面積vt. 使成比例, 使均衡【醫】 比, 比例, 比率相關詞組: out of proportion a small proportion of in proportion as in proportion to in proportion

比例，比率，部分