zhè / zhī / jìlùpiàn / zài / xiànchǎng / shōuyīn / shí / bìxū / bìkāi / fēngshēng / hé / rénqún / de / xuānnào这支纪录片在现场收音时,必须避开风声和人群的喧闹。When recording sound on location for this documentary, the crew must avoid wind noise and the din of the crowd.