It's taken thousands of years to reach this size.它花了幾千年才長到這么大

thousands of數千的 ...

It travels thousands of miles per second.

它一秒鐘能走幾千英里。

Men have been making music for thousands of years.

人類創作音樂已有數千年歷史。

may have seen the sun rise more than 1.5 million times.而且可能歷經了一百五十多萬次的日出日落

more than超過；多于；不僅僅；非常

This city has a population of more than 1,000,000.

這個城市人口超過一百萬。

I'll stay here not more than three days.

我將待在這里最多不超過三天。

Like animals, plants are constantly competing for food.植物和動物一樣，無時無刻不在搶奪食物

compete for(為 ... )爭奪； 競爭

Thirty people had to compete for only ten openings.

三十個人必須只為十個名額來競爭。

The two teams compete for the championship.

那兩隊都要爭當冠軍。

Striving to produce offspring努力繁衍后代

strive to爭取, 追求

I am striving to explain explicitly.

我力爭做出詳盡的說明。

They are striving to complete the task given them.

他們正努力完成交給他們的任務。