爱词霸英语   汉语   手机版   软件版下载 | English
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1.Many people object to experimentation on animals.
许多人反对用动物做实验.收藏指正
2.A cure for the disease was found by experimentation on animals.
该病的治疗法是在动物身上做的实验中发现。收藏指正
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