structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc
to obtain
to acquire
to get
to gain
suit
proper
ready
finished
to be satisfied
to permit
to need to
to have gone as far as to
to have even done
can
mouth
classifier for things with mouths (people, domestic animals, cannons, wells etc)
classifier for bites or mouthfuls
open end
entrance
gate
opening
person
edge or blade of a knife
a crack
KangXi radical 30