She called up her last reserves of strength.

　　她使盡了最后一點(diǎn)力氣。

　　I sat down for a moment to gather my strength.

　　我坐下片刻積蓄力量。

　　Political power depends upon economic strength.

　　政治權(quán)力取決于經(jīng)濟(jì)實(shí)力。