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eyelid
瞼が重くて目を開けているのが難しくなった。
My eyelids are heavy and it's becoming difficult to keep my eyes open.
朝起きたら瞼が腫れていてびっくりしたよ。
I was surprised that my eyelids were swollen when I woke up.
亡くなった祖母の顔が瞼の裏に浮かんでくる。
The face of my late grandmother comes to mind.