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快い, 心良い, こころよい
1. pleasant, agreeable, comfortable, refreshing
tbd
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眠る, 睡る, ねむる, ねぶる
1. to sleep
2. to die, to rest (in peace), to lie (buried), to sleep (in the grave)
3. to lie idle (e.g. of resources), to lie unused, to lie untapped, to lie untouched
4. to close one's eyes
入睡