treadmill
n. 跑步机；（过去通常用以惩罚犯人的）踏车；枯燥重复的工作
复数 treadmills
例句
He exhausted himself on an endless treadmill to pay for rent and food.
为了支付房租和食物，他精力全都耗在了一份没完没了的单调工作上。
《柯林斯英汉双解大词典》
She says she is able to take Zumba exercise classes three times a week and work out on the treadmill twice a week.
她说她每周能上三次尊巴健身课，并每周在跑步机上锻炼两次。
The havoc that the "treadmill syndrome" can bring about is well illustrated by what happened to cotton farmers in Central America.
“跑步机综合症”可能带来的浩劫，在中美洲棉农身上已经得到了很好的体现。
