Vocabulary consisting only from characters you are able to read
切線
せっせん
tangent (in trigonometry)mix
世世
よよ
for generations, hereditary, generation after generationmix
何時までも
いつまでも
(uk) forever, for good, eternally, as long as one likes, indefinitely, no matter whatmix
夜食
やしょく
supper/night meal/late-night snack/"fourth meal"/midnight snackleda1