The unions called a two-hour strike in protest at the railway authority's announcement.各工会号召罢工两小时,以对铁路当局所发通告表示抗议。They will call a strike if they don't get more money.如果不调高薪资,他们将号召罢工。The trade union is invested with the power to call a strike.工会被授于号召罢工的权力。The militants might still find some new excuse to call a strike.激进分子可能还是会找些新借口来号召罢工。