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nínshìfǒuzàixúnqiú： 候补 候补演员 gèngduōjiéguǒ...

mùlù ·yīngwénjièshì ·jìnyící ·gèngduōjiéguǒ... yīngwénjièshì n.:  understudy,  person who learns the part of another in a play, etc in order to be able to take his place at short notice if necessary jìnyící tì shǒu