A:瘦削(xiāo)言简意赅(gāi)黯淡(àn)便宜行事(biàn)
B:怔忡(zhèng)危如累卵(lěi)笃实(dú)得陇忘蜀(lǒng)
C:裙褶(zhě)风餐露宿(lù)低徊(huí)佶屈聱牙(jí)
D:瞻养 (shàn)溘然长逝(kè)复辟(pì)鲜为人知(xiǎn)
— Can you tell me how to build up a strong body?
—You should take________ exercise, I think.