詞彙精選：approximately的用法和辨析

一、詳細釋義：

adv.

近似，大約，近乎

例句：

The plane will be taking off in approximately five minutes.

飛機大約五分鐘後就起飛。

例句：

The journey took approximately two weeks.

旅行大約用了兩週。

二、詞義辨析：

almost,nearly,about,approximately,around,roughly

這些副詞均有“大約，差不多”之意。almost指在程度上相差很小，差不多。nearly與almost含義基本相同，側重指數量、時間或空間上的接近。about常可分almost和nearly換用，但about用於表示時間、數量的“大約”時，實際數量可能多也可能少。approximately多用於書面語，指精確度接近某個標準以致誤差可忽略不計。around多用於非正式場合，常見於美國英語。roughly指按精略估計，常代替about。

三、參考例句：

The journey took approximately two weeks.

旅行大約用了兩週。

You respire approximately 21,666 times a day.

人每天約呼吸21666次。

Per square kilometer approximately has 200 residents.

每平方公里大約有200居民。

The journey took approximately seven hours.

旅程大約花了七個小時。

The journey should take approximately two hours.

這次旅行竟然用了近兩個鐘頭。

The asthenosphere corresponds approximately to the low-velocity zone.

軟流圈，大體上相當於低速帶。

Approximately half of these children are in school.

這些兒童中約一半在學校學習。

Approximately $150 million is to be spent on improvements.

大約1.5億美元將用於作出改善。

The plane will be taking off in approximately five minutes.

飛機大約五分鐘後就起飛。

The mixture is allowed to hydrate for approximately 3 minutes.

混合物進行水合反應約3分鐘。