the researchers examined the chemistry of substances found in ancient clay containers that were over three thousand years old.
研究人员化验了在古代陶制容器中发现的约三千年前的化学物质。
although tea wasn「t brought to the western world until 1610, this beverage was discovered over three thousand years before that.
虽然,茶直到1610年才传入西方世界,但是这种饮料在三千多年前就被发现了。
although tea wasn」t brought to the western world until 1610, this beverage was discovered over three thousand years before that.
尽管茶到1610年才传到西方,但这种饮料在那之前三千年就已经被发现了。
the mesoamerican ballgame originated over three thousand years ago.
而中美洲的球赛已有超过三千年的历史。