彼、作業の効率を上げる工夫をした

N5 彼 kare he N3 作業 sagyou work, operation, task N1 効率 kouritsu efficiency N5 上げる ageru raise, lift, increase N2 工夫 kufuu device, artifice, ingenuity

N3 彼 hi / kare, kano, ka.no he, that, the N4 作 saku, sa / tsuku.ru, tsuku.ri, -zuku.ri make, production, prepare N4 業 gyou, gou / waza business, vocation, arts N2 効 kou / ki.ku, kikime, nara.u merit, efficacy, efficiency N1 率 sotsu, ritsu, shutsu / hiki.iru ratio, rate, proportion N5 上 jou, shou, shan / ue, -ue, uwa-, kami, a.geru, -a.geru, a.garu, -a.garu, a.gari, -a.gari, nobo.ru, nobo.ri, nobo.seru, nobo.su, tatematsu.ru above, up, au-dessus N4 工 kou, ku, gu craft, construction, katakana e radical (no. 48) N3 夫 fu, fuu, bu / otto, sore husband, man, mari

N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase