为
wéi
I v.
1) do; accomplish
2) act/serve as
3) be; become
4) govern
II cov.
by
III cons.
为 N suǒ V: be V'ed by N
为敌所败 be defeated by the enemy
IV suf.
1) added to s.v. to form adv.
大为可贵 very valuable/praiseworthy
2) added to adv. as intensifier
极为可怕 extremely frightening