面对突如其来的质问,他茫然地站在原地,一时不知道如何回应。Miànduì tūrúqílái de zhìwèn, tā mángrán de zhàn zài yuándì, yìshí bù zhīdào rúhé huíyìng.Faced with the sudden questioning, he stood there blankly, not knowing how to respond for a moment.
她茫然地看着地图,不知道该往哪边走。Tā mángrán de kàn zhe dìtú, bù zhīdào gāi wǎng nǎ biān zǒu.She looked blankly at the map, not knowing which way to go.
刚到新学校时,他感到有点茫然。Gāng dào xīn xuéxiào shí, tā gǎndào yǒudiǎn mángrán.When he first arrived at the new school, he felt a bit lost.