HSK 1
Tā duì péngyou zhīwú-bùyán.
With friends, he holds nothing back.
HSK 7-9
Lǎoshī zhīwú-bùyán, xuésheng shòuyì-fěiqiǎn.
The teacher shares everything he knows, and the students benefit greatly.
HSK 7-9
Zài huìyì shàng, tā zhīwú-bùyán, yánwú-bújìn.
At the meeting, he spoke frankly, telling all he knew.
