单词decadelong
The census is an international effort currently involved in a decadelong study of ocean biodiversity.
这项普查是国际性的努力，正在着手进行一项为期十年的海洋生物多样性研究。
The employment decline in many tech categories is part of a decadelong trend.
很多科技行业的就业下降是一个持续十年的趋势的一部分。
But China"s decadelong rise from a nonplayer in R. and D. to the world"s second-largest spender poses a serious threat.
但是中国在过去是10年从研发领域的无名小辈成长为第二大研发投入国，形成了严重的威胁。