join forces片語KK [dʒɔɪn ˋfɔrsɪz] /dʒɔɪn ˈfɔɹsɪz/發音片語1聯手、合力、攜手合作The two companies joined forces to develop a cheaper vaccine.這兩家公司聯手開發更便宜的疫苗。2會師、合兵軍事The two armies joined forces on the eastern bank of the river.兩支部隊在河的東岸會師。