yes, 同以小千和文青， 覺得這裏字麵上“coast”有 "slide"的意思

來源: 於 2011-05-15 15:13:34 [舊帖] [給我悄悄話] 本文已被閱讀：次

引申為 “take it easy" or "relax"

so, it means "When you begin to take it easy， you'll go downgrade, or you won't move up"