由于需求激增，这家工厂的产量在三个月内增长了两倍。

The factory's output ___tripled in three months due to a surge in demand.

公司去年的产量增加了两倍。

The company ___tripled its production output last year.

击球手在第一局就击出三垒打，为球队拿下三分。

The batter ___tripled in the first inning, scoring three runs for the team.