doubtful
adj. /ˈdaʊtfl/ B2
怀疑的；不太可能的
Not sure; unlikely to happen or be successful.
仙境例句
Alice looked doubtful as she held two pieces of mushroom, one in each hand.
爱丽丝两只手各拿着一块蘑菇，脸上满是拿不准的神情。
原著这一句
“I dare say you’re wondering why I don’t put my arm round your waist,” the Duchess said after a pause: “the reason is, that I’m doubtful about the temper of your flamingo.
“我敢说你一定在纳闷我怎么没搂你的腰，”公爵夫人顿了顿说，“其实我是拿不准你的红鹳会不会发脾气。”
卡罗尔原著 · 第 9 章