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
two
both
some
a few
tael, unit of weight equal to 50 grams (modern) or 1
16 of a catty 斤jīn [斤] (old)
a group of about ten people