be dubious about
美
英 
英汉解释
例句
I would be dubious about giving them systemically because of the important role reactive oxygen plays in positive processes.
由于活性氧在积极的生理过程中所起的重要作用,我对将这些药物全身给予存疑。
She was beginning to be dubious about the man's claim to be a window-cleaner
她对那自称是窗子清洁工的话,开始感到疑虑