cud 英[kʌd] 美[kʌd]
n. 反刍的食物; 嚼烟
V. 细想，玩味
[例句]
1) She just stood there calmly gazing at me and chewing he cud .
它只是站在那儿，静静地望着我，嘴里咀嚼着从胃里吐出的东西。
2) I chewed the cud for a couple of days before deciding to refuse your offer.
我反复思考了二三天后才决定拒绝你的提议。
3) No matter how hard I pulled on her rope,the old cow refused to budge. She just stood there calmly gazing at me and chewing he cud.
不管我怎样用劲拉缰绳，那条老母牛一点儿也不动窝。它只是站在那儿，静静地望着我，嘴里咀嚼着从胃里吐出的东西。
参考资料：
http://fanyi.baidu.com/?aldtype=85#en/zh/cud