"a bad investment"
"high risk investments"
"anything that promises to pay too much can't help being risky"
"speculative business enterprises"
"a notional figure of cost helps in determining production costs"
"speculative knowledge"
"if someone saw a man climbing a light post they might get inquisitive"
"raised a speculative eyebrow"
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句
来自《权威词典》
来自《简明英汉词典》