What is the meaning of 可以?
can; may
can; to be able to
... can be used to ... (usually with ellipsed 之 (zhī, “this”)); literally: 可 (“can”) + 以 (“by; by means of; according to”)
to clear; to give clearance
passable; pretty good; not bad; all right; OK
to a great extent
capable; remarkable
chữ Hán form of khả dĩ (“possible”).
Source: wiktionary.org