Rations that would serve a few years ago are not adequate now . 若干年以前的合理飼糧今天已經不再適用。
The helicopter, which was suggested by leonardo da vinci some four hundred years ago is a rotating wing device . 直升飛機是大約400年前倫納德達文奇曾提出的一種旋翼裝置。
The organisms living between 3 and 1 billion years ago were not as versatile as modern species, probably due to energy limitation . 生活在過去二十億年之間的有機體可能由于能量的限制,不如現代物種這樣五花八門。
How long ago is that ? year phil gilligan died 是菲爾吉利根50去世的那一年。
The conditions that existed ten years ago are reproduced today 十年前的情形今天又重現了。
Her husband who disappeared a year ago is a prime suspect 她一年以前失蹤的丈夫是主要嫌疑人
Tom and i just adore rome . how long ago were you there 湯姆和我非常喜歡羅馬你們什么時候去的?
The bridge built 100years ago is still in very good condition 那座100年前建造的橋依然完好無損。
The house ( in which ) we ( lived ) ten years ago is now a shop 我們家十年前住過的房子現在是一家商店。
Anything we said 6 or 8 months ago is inadmissible in an argument 不要在爭論的時候引用我們6或8個月前說過的話。