增加

出国的人数一直在增加。

chū guó de rén shù yī zhí zài zēng jiā。

The number of people who go abroad has been increasing.

听说最近失业者人数正在增加

tīng shuō zuì jìn shī yè zhě rén shù zhèng zài zēng jiā

I hear that the number of the unemployed has been increasing recently.

汤姆一年内增加了一倍的投资。

Tāng mǔ yī nián nèi zēng jiā le yī bèi de tóu zī。

Tom doubled his investment in a year.