Meaning of zhěng zhěng:
zhěng zhěng
整整
Adverb
whole; full
Wǒ zuótiān wǎnshàng gōngzuòle zhěngzhěng shí'èr gè xiǎoshí.
我昨天晚上工作了整整十二个小时。
I worked for a whole twelve hours last night.
Tā zài túshūguǎn dàile zhěngzhěng yītiān.
他在图书馆待了整整一天。
He spent a full day in the library.
