a small animal covered in fur with rounded ears, short legs, and no tail, often kept as a pet by children豚鼠,天竺鼠
a person used in a scientific test, usually to discover the effect of a drug on humans(通常用于测试药效的)实验对象,供做实验的人
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
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