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3歳がセブンの焼き立てメロンパンが好きすぎていつもレジに直行して…
→ “A 3-year-old loves 7-Eleven's fresh melon pan so much they always go straight to the register...”
3歳 sansai = 3 years old (noun phrase)
3 san = three
歳 sai = years / age
が ga = particle indicating subject or focus
セブン sebun = Seven (abbreviation for Seven-Eleven)
の no = possessive particle 'of'
焼き立て yakitate = freshly baked (adjective/noun modifier)
メロンパン meronpan = melon pan (noun)
が ga = subject/focus marker particle
好き suki = like / love (i-adjective)
すぎ sugi = too much / excessively (suffix)
て te = conjunction linking adjectives to result clause
いつも itsumo = always (adverb)
レジ reji = cash register (loanword from English 'register')
に ni = directional particle 'to' / 'towards'
直行 chokkou = go straight / direct course (noun/na-adj)
して shite = do / make (te-form of suru)
