be the first on earth

基本解釋

The tiny protozoans are believed to be the first animals to have appeared on earth.
人們認(rèn)爲(wèi)小原生動(dòng)物是首先出現(xiàn)在地球上的動(dòng)物。
It's believed to be the first evidence of pollutants affecting one of the most remote habitats on earth.
據(jù)信這是汙染物影響地球上最遙遠(yuǎn)的動(dòng)物棲息地的首例証據(jù)。
The vents may also be where chemistry first became biology—that is, where life on earth began—and thus be scientifically priceless.
這些噴口也可能是化學(xué)物質(zhì)最初轉(zhuǎn)化成生物的地方，也就是生命最初存在的地方，因而其科學(xué)價(jià)值極高。

That means that by the time President Barack Obama is no longer in the White House, the new president will be the first since World War II to not govern the most powerful economy on Earth.
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And this Navy fighter jet -- appropriately called the Green Hornet -- will be flown for the first time in just a few days, on Earth Day.
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The first Fox title under the agreement will be Avatar, which hit stores on Thursday in time for Earth Day.
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