[00:07.21]dubious 怀疑的 doubtful
[00:15.11]The dubious employees shook their heads as  they carried out the order.
[00:20.49]skeptical 怀疑的 dubious, incredulous
[00:24.25]The skeptical student refused to accept the  theory of evolution.
[00:29.46]suspicion 怀疑 doubt, distrust
[00:33.35]suspicious 可疑的 猜疑的 dubious, fishy
[00:37.39]Aunt Jane was suspicious of everyone who  came to her front door.
[00:42.71]fishy 值得怀疑的 suspicious, dubious
[00:47.15]Are you telling the truth? Your story  sounds fishy to me.
[00:52.18]incredulity 怀疑 suspicion, disbelief
[00:55.46]misgiving 疑惧 疑虑
[00:59.04]poise 犹疑
[01:02.66]halt 踌躇 停止
[01:06.48]The police ordered the thief to halt.
[01:10.13]scruple 踌躇 顾忌 hesitation,  scrupulousness
[01:14.47]She wouldn't cruple to tell a lie if she  thought it would be useful.
[01:20.35]flounder 踌躇 (比目鱼)
[01:23.79]demur 踌躇
[01:27.23]Anne demur at the statement that she  assigned too much homework.
[01:32.08]hesitate 踌躇犹豫 含糊 falter, vacillate
[01:37.57]John hesitated when I asked him to help me  move some furniture.
[01:42.52]doubt 怀疑 suspect
[01:45.91]After he lost the game, Bill had doubts  about his athletic ability.
[01:52.24]suspect 怀疑
[01:53.88]I suspect his motives.