at work on短语³⁷¹⁴³ 基本例句 从事于 The Indians, meanwhile, have been hard at work on a new generation of long- range missiles of their own. 与此同时，印度人也早已经投入到他们自己的新一代远程导弹的开发中。 yeeyan Speech recognition on mobile devices looks set to be a new mobile battleground as Google has also been hard at work on similar features. 手机的语音识别功能必定会成为手机战的新战场，谷歌在此之前也在致力于类似功能的研究。 yeeyan