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
吧
baa6
(modal particle indicating suggestion or surmise)
...right?
...OK?
...I presume
Learn Stroke Order
See how to write "回" with stroke-by-stroke animation