(yǐ, ㄧˇ) to use; according to; so as to; in order to; by; with; because; abbr. for Israel [CE-DICT]
为
(wéi, ㄨㄟˊ) as (in the capacity of); to take sth as; to act as; to serve as; to behave as; to become; to be; to do [CE-DICT]
(wèi, ㄨㄟˋ) because of; for; to [CE-DICT]
挺
(ちょう) (ctr) counter for long and narrow things such as guns, scissors, spades, hoes, inksticks, palanquins, candles, jinrikishas, shamisen, oars, etc. [EDICT]
(tǐng, ㄊㄧㄥˇ) straight and stiff; rather (good); quite; very; classifier for guns or machinery [CE-DICT]