notadictionary.com
さっきスゲェ車内アナウンスに遭遇した。
→ “I just ran into a super awkward train announcement.”
さっき sakki = just now / a moment ago (adverb)
スゲェ sugee = super / awesome / intense (slang adjective)
車内 shannai = inside the car / inside the train (noun)
車 sha = car / vehicle
内 nai = inside / interior
アナウンス anawnsu = announcement (loanword from English)
に ni = at / to / onto (particle indicating target/destination)
遭遇 sō¹gu = to encounter / to run into (v.)
遭 sō¹ = to meet / to encounter
遇 gu = to meet / to face
した shita = did / past tense of 'suru' (v.)
notadictionary.com
「(電車の)乗り降りのときくらい…
→ “"Like, at least during when you get on and off the train..."”
「 = opening quotation mark
( = opening parenthesis
電車 densha = train (noun)
電 den = electricity / electric
車 sha = vehicle
の no = of / possessive particle (n.)
) = closing parenthesis
乗り降り noriori = getting on and off (compound verb)
乗 no = to ride / to board
り ri = (te-form connector)
降 ori = to descend / to get off
り ri = (te-form connector)
の no = of / possessive particle (n.)
とき toki = time / moment (noun)
くらい kurai = about / around / roughly (quantifier)
… = ellipsis (indicating trailing off)