► 動詞
苦心 [(1)くしん] [苦心する] meaning: think rank: 3
☆ 製品の高性能と小型化を両立することに大変苦心した ⇨ We had to think really hard to make the product high-performance and small without compromising (☛ Rack one’s brain)
► 名詞
苦心 [(1)くしん] meaning: think rank: 3
☆ 苦心に苦心を重ねた調理法 ⇨ A cooking method I developed with a lot of trials and errors (☛ Rack one’s brain)