guinea pig

US /ˈɡɪn.i ˌpɪɡ/
UK /ˈɡɪn.i ˌpɪɡ/
"guinea pig" picture
1.

豚鼠

a small, tailless, domesticated South American rodent with short ears and a stout body, widely kept as a pet or for scientific research.

:
My sister got a new guinea pig for her birthday.
我妹妹生日时得到了一只新豚鼠
The scientist used guinea pigs in their experiment.
科学家在他们的实验中使用了豚鼠
2.

试验品, 实验对象

a person or thing used as a subject for experiment, trial, or practice.

:
The new software was tested on a few users, who acted as guinea pigs.
新软件在少数用户身上进行了测试,他们充当了试验品
I don't want to be a guinea pig for their experimental new diet.
我不想成为他们实验性新饮食的试验品