孤军奋战

tā nián lái gū jūn fèn zhàn zhì lì yú gǎi shàn gāi zhèn quē shǎo ér tóng bǎo yù fú wù de zhuàng kuàng

她15年来孤军奋战，致力于改善该镇缺少儿童保育服务的状况。

She has fought a one-woman campaign for fifteen years about the lack of childcare provision in the town.

zhǐ kào měi guó gū jūn fèn zhàn shì bù zú yǐ chéng shì de

只靠美国孤军奋战是不足以成事的。

On its own, the US effort is not enough.