v.怀疑；不信；恐怕；拿不准
n.怀疑；疑问；疑惑
doublets───n.紧身上衣；成对物；一对中的一个；n.(Doublet)人名；(法)杜布莱；(西)多夫莱特
doubters───n.抱怀疑态度的人；不信宗教的人；怀疑论者
redoubts───n.多面堡；防御性障碍物
doubles───n.双打；[矿业]双粒级煤；复制品（double的复数）；v.使加倍；复制；折叠（double的三单形式）；n.(Doubles)人名；(英)道布尔斯
doubted───疑惑；[法]怀疑
doubter───n.抱怀疑态度的人；不信宗教的人；怀疑论者
double───adj.两倍的；成对的；（花）重瓣的；供两人用的；双重的；n.极相似的对应物；替身；供双人用的事物；双倍；（复数）双打（尤指网球）；（在同一赛季或年份两次获胜的）双料冠军；（棒球）二垒安打；（C语言的）双精度浮点数；v.加倍；对折；det.是……的两倍；adv.双重地；重叠的；pron.双倍数（或量）；n.（Double）（美）杜布勒（人名）
doubly───adv.双重地；加倍地；双摺地
doubtfuls───怀疑者
Doubts nagged me all evening.───我一晚上都没有摆脱心中的疑虑。
All our doubts fell away.───我们的一切疑虑都烟消云散。
Doubts began to surface.───开始怀疑起来。
Jack's grade in the exam was much higher than usual and he might have cheated, but the teacher gave him the benefit of the doubts.───杰克的考试成绩比平时高出很多，可能作了弊，不过老师宁信其无，没有追究。
He said the Pentagon has doubts about exactly how stealthy the new aircraft might be.───他说，新飞机隐形能力究竟怎样，五角大楼是存有怀疑的。
Jas. 1: 6 But let him ask in faith, doubting nothing, for he who doubts is like the surge of the sea, driven by the wind and tossed about.───雅一6只是要凭著信心求，一点不疑惑；因为那疑惑的人，就像海中的波浪，被风吹动翻腾。
Given all his doubts and fears, your father chooses to avoid the matter altogether by simply changing the subject.───考虑到他的疑惑和担心，你父亲就简单地选择改变话题来避开这件事情。
I love him. Everyone loves him, but more than one of my family members has come to me to express doubts about him.───我爱他，大家也都爱他，可是不止一个家人来跟我谈起对他的顾虑。
Today, however, he seems to have no doubts that China's stockmarket is bubbling over.───然而，他似乎毫无疑问的认为当今中国的股票市场正是泡沫涌起之时。
Don't waste life in doubts and fears.
Doubts began to fret his mind.
This raised doubts about the provenance of the painting.
I have no doubts as to your ability.
Carla was suddenly assailed by doubts.
He that knows nothing, doubts nothing.
I have my doubts about it.
Have no doubts because of trouble nor be thou discomtited; for the water of life's fountain springeth from a gloom bed.
Distance doesn't ruin a relationship. Doubts do.