simulation n. (用實驗、儀器等的)模擬
animal right activists 動物權(quán)益保護主義者
medical research 醫(yī)學研究
cruel/merciless/inhuman/callous/brutal adj. 殘忍的
vivisection n. 活體解剖
anesthetic n. 麻醉
relieve/alleviate/ease animal's pain 減輕動物的痛苦
pets are their masters'companions 寵物是主人的伙伴
afford their masters consolation and comfort 給主人心理安慰
poach v. 偷獵
there are no replacements/substitutes/alternatives for sth. 某一種事物是沒有替代物的