你不必这么客气。
Nǐ búbì zhème kèqi.
English
You do not have to be so polite.
need not; not necessary
need not; does not have to; not necessarily
Every character draws itself stroke by stroke, then hands you the brush to trace it yourself.
Nice writing!
你不必这么客气。
Nǐ búbì zhème kèqi.
You do not have to be so polite.
这件事不必担心。
Zhè jiàn shì búbì dānxīn.
There is no need to worry about this matter.
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.