鮮為人知

rarely known to anyone (idiom); almost unknown / secret to all but a few

fresh / bright (in color) / delicious / tasty / delicacy / aquatic foods

few / rare

as (in the capacity of) / to take sth as / to act as / to serve as / to behave as / to become / to be / to do / by (in the passive voice)

because of / for / to

to conduct oneself / behavior / conduct / personal character

for sb / for others' interest

person; people / CL:個|个[ge4],位[wei4]

to know / to be aware

Mao: The Unknown Story by Jung Chang 張戎|张戎 and Jon Halliday