?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

doubtfully

英 / ˈdaʊtfəli /
美 / ˈdaʊtfəli /
adv. 怀疑地;迷惑不解地;疑虑重重地;不以为然地

1. Keeton shook his head doubtfully.
基顿将信将疑地摇了摇头。
2. "It's worth trying," they said doubtfully.
“这值得一试。”他们迟疑地说。
3. "I think I knew them," said Michael rather doubtfully.
“我想我认识他们。”迈克尔不太确定地说。
4. "Yes," said Alice doubtfully, "it means...to...make...anything...prettier."
“是的,”爱丽丝拿不准地说,“它的意思是……使……任何东西……变得更美丽。”
5. "John," he said, looking around him doubtfully, "I think I have been here before."
“约翰,”他疑惑地环顾四周,说道,“我想我以前来过这里。”