classifier for long thin things (rivers, cracks etc), barriers (walls, doors etc), questions (in an exam etc), commands, courses in a meal, steps in a process
province (of Korea or Japan)
channel
method
doctrine
teachings
啦
la5
“now”, with an connotation of doubt
surprise
disapproval
記住
gei3 zyu6
remember
Learn Stroke Order
See how to write "那知" with stroke-by-stroke animation