1、 The air force is one of the armed forces、空軍是武裝部隊的一種。
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3、 The force of gravity makes things fall to earth、地心引力使物體落向地面。
4、 The rider forced his horse on through the storm、騎士迫使他的馬在暴風(fēng)雨中前進(jìn)。
5、 There is force in what he said、他的話(huà)有說(shuō)服力。