尽管公司面临困境，他依然忠诚地坚守岗位。

Despite the company's difficulties, he remained ___faithful to his position.

这台老相机几十年来一直很可靠。

This old camera has been ___faithful for decades.

这位歌手的翻唱版本完美还原了原曲的精髓。

The singer's cover was remarkably ___faithful to the original song.