词汇精选:approximately的用法和辨析
一、详细释义:
adv.
近似,大约,近乎
例句:
The plane will be taking off in approximately five minutes.
飞机大约五分钟后就起飞。
例句:
The journey took approximately two weeks.
旅行大约用了两周。
二、词义辨析:
almost,nearly,about,approximately,around,roughly
这些副词均有“大约,差不多”之意。almost指在程度上相差很小,差不多。nearly与almost含义基本相同,侧重指数量、时间或空间上的接近。about常可分almost和nearly换用,但about用于表示时间、数量的“大约”时,实际数量可能多也可能少。approximately多用于书面语,指精确度接近某个标准以致误差可忽略不计。around多用于非正式场合,常见于美国英语。roughly指按精略估计,常代替about。
三、参考例句:
The journey took approximately two weeks.
旅行大约用了两周。
You respire approximately 21,666 times a day.
人每天约呼吸21666次。
Per square kilometer approximately has 200 residents.
每平方公里大约有200居民。
The journey took approximately seven hours.
旅程大约花了七个小时。
The journey should take approximately two hours.
这次旅行竟然用了近两个钟头。
The asthenosphere corresponds approximately to the low-velocity zone.
软流圈,大体上相当于低速带。
Approximately half of these children are in school.
这些儿童中约一半在学校学习。
Approximately $150 million is to be spent on improvements.
大约1.5亿美元将用于作出改善。
The plane will be taking off in approximately five minutes.
飞机大约五分钟后就起飞。
The mixture is allowed to hydrate for approximately 3 minutes.
混合物进行水合反应约3分钟。