While at Westminster College, Mr. Cook was an assistant instructor of the well-known American Boy's Choir, and gained good experience on how to teaching children singing.
在校期间，他曾担任享有圣誉的美国男童合唱团的辅导员，并积累了丰富的训练儿童歌唱的经验。
While at Westminster College, Mr. Cook was an assistant instructor of the well-known American Boy's Choir, and gained good experience on how to teaching children singing.
在校期间，他曾担任享有圣誉的美国男童合唱团的辅导员，并积累了丰富的训练儿童歌唱的经验。
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