() (prt) (arch) (See を) marks object of action, etc. (also adds emphasis) [EDICT]
缶切り
(かんきり) (n) can opener [EDICT]
として
() (prt) assuming ...; even if ...; (P) [EDICT]
使う
(つかう) ใช้ [LongdoJP]
(つかう) (v5u,vt) (1) to use (a thing, method, etc.); to make use of; to put to use; (2) (See 人使い) to use (a person, animal, puppet, etc.); to employ; to handle; to manage; to manipulate; (3) to use (time, money, etc.); to spend; to consume; (4) (See 言葉遣い) to use (language); to speak; (5) (id) to take (one's lunch); to circulate (bad money); (P) [EDICT]