n.潛艇；替代品

vi.替代

vt.轉(zhuǎn)包合同

Local radio reported that the sub had oxygen tanks. 當?shù)貜V播報導(dǎo)，這艘潛艇內(nèi)配備氧氣桶。

The nuclear-powered submarine can overrun any other sub. 核動力潛艇能比其他任何潛艇駛得快。

I had to sub for the referee, who was sick. 裁判病了，我得代為裁判。

Clive Walker came on as a sub and starred. 克里夫-沃克替補上場，大放異彩。