听完教授的解释,学生才恍然大悟,原来问题的症结在假设本身。Tīng wán jiàoshòu de jiěshì, xuésheng cái huǎngrán dàwù, yuánlái wèntí de zhēngjié zài jiǎshè běnshēn.Only after hearing the professor's explanation did the students suddenly realise that the crux lay in the assumption itself.
看到桌上的生日蛋糕,她恍然大悟,原来大家早就计划好了。Kàndào zhuō shang de shēngrì dàngāo, tā huǎngrán dàwù, yuánlái dàjiā zǎo jiù jìhuà hǎo le.Seeing the birthday cake on the table, she suddenly understood that everyone had planned it long ago.
他盯着地图看了很久,忽然恍然大悟,原来自己一直拿反了。Tā dīng zhe dìtú kàn le hěn jiǔ, hūrán huǎngrán dàwù, yuánlái zìjǐ yìzhí ná fǎn le.He stared at the map for a long time, then suddenly realised he had been holding it the wrong way round.