Solar water heaters have become the first commercialized regenerative energy industry in China.

太阳能热水器已成为我国第一个实现，商业化的可再生能源产业。

youdao

Coming into knowledge economy era, human resources have become the first competitive factor in enterprise.

进入知识经济时代，人力资源成为企业的第一竞争要素。

youdao

Coming into knowledge economy era, human resources have become the first competitive factor in enterprises.

进入知识经济时代，人力资源成为企业的第一竞争要素。

youdao

British soldiers in Afghanistan have become the first to use miniature surveillance helicopters in frontline operations.

BBC: Mini helicopter drone for UK troops in Afghanistan

Olly Morgan and Mark Foster have become the first players to pledge their futures to the club.

BBC: Gloucester coach Dean Ryan

California and Illinois have become the first two states to make it expressly illegal for employers to make such demands.

BBC: Quiz of the week's news