Oyster card (런던에서 사용하는) 교통 카드He had an Oyster card, but it hadn't been used.Everyone uses oyster cards instead of cash these days.Do you have to charge your oyster card before using it? pick up (on something) 알아채다, 눈치채다, 배우게 되다Well, how come the autopsy didn't pick that up?I've picked up a few Japanese words watching the series.The doctors picked up on the early symptoms of the disease. go ..
