guinea pig
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guinea pig — 名詞
1. a small furry animal often kept as a pet
1.名詞
釋義
天竺鼠
a small furry animal often kept as a pet
例句
My sister has a pet guinea pig.
2. a person used in an experiment
2.名詞
釋義
實驗品
a person used in an experiment
例句
He volunteered to be a guinea pig for the new drug test.